{
  "name": "Dark fiber providers",
  "url": "https://darkfiberlist.com/",
  "license": "CC BY 4.0",
  "cite": "Dark Fiber List, https://darkfiberlist.com/",
  "updated": "2026-11-11",
  "fields": [
    {
      "key": "region",
      "label": "Service region",
      "type": "enum",
      "description": "Primary geography of the fiber or optical offer. Global marks cross-region networks.",
      "filterable": true,
      "sortable": true,
      "enumValues": [
        "North America",
        "Europe",
        "Asia-Pacific",
        "Latin America",
        "Africa",
        "Global"
      ]
    },
    {
      "key": "coverage",
      "label": "Markets / corridors",
      "type": "string",
      "description": "Countries, metros and corridors named in the provider’s product or network documents.",
      "sortable": true
    },
    {
      "key": "offers",
      "label": "Documented offer",
      "type": "enum",
      "description": "Dark fiber, wavelength, or both, as the provider sells them.",
      "filterable": true,
      "sortable": true,
      "enumValues": [
        "Dark fiber",
        "Wavelength",
        "Dark fiber + wavelength"
      ]
    },
    {
      "key": "reach",
      "label": "Published reach",
      "type": "enum",
      "description": "Metro, long haul, or both, as the provider describes its network.",
      "filterable": true,
      "sortable": true,
      "enumValues": [
        "Metro",
        "Long haul",
        "Metro + long haul"
      ]
    },
    {
      "key": "route_miles",
      "label": "Route footprint",
      "type": "number",
      "unit": "mi",
      "description": "Published route miles in the provider’s own unit. Footprint scope gives the date and coverage.",
      "sortable": true
    },
    {
      "key": "route_km",
      "label": "Route footprint",
      "type": "number",
      "unit": "km",
      "description": "Published route kilometers. Other network-length measures sit in Footprint scope.",
      "sortable": true
    },
    {
      "key": "footprint_scope",
      "label": "Footprint scope",
      "type": "string",
      "description": "What the network figure measures, where and when, in the provider’s own terms.",
      "sortable": true
    },
    {
      "key": "metro_count",
      "label": "Metro markets",
      "type": "number",
      "description": "Number of metro markets the provider publishes.",
      "sortable": true
    },
    {
      "key": "data_centers",
      "label": "DC reach",
      "type": "number",
      "description": "Data centers the provider connects. DC scope says whether they are on-net, connected or serviceable.",
      "sortable": true
    },
    {
      "key": "dc_scope",
      "label": "DC scope / access",
      "type": "string",
      "description": "On-net, connected or serviceable, with the region covered and named facilities.",
      "sortable": true
    },
    {
      "key": "terms",
      "label": "Commercial terms",
      "type": "string",
      "description": "Lease, IRU and contract options as the provider states them.",
      "sortable": true
    },
    {
      "key": "fiber_spec",
      "label": "Fiber specification",
      "type": "string",
      "description": "ITU-T fiber standards the provider names for its dark fiber.",
      "sortable": true
    },
    {
      "key": "delivery",
      "label": "Engineering / delivery",
      "type": "string",
      "description": "Topology, testing, monitoring, restoration and delivery targets the provider publishes.",
      "sortable": true
    },
    {
      "key": "wavelength_offer",
      "label": "Wavelength / spectrum offer",
      "type": "string",
      "description": "Optical speeds and spectrum options the provider sells.",
      "sortable": true
    },
    {
      "key": "recent_build",
      "label": "Build / expansion evidence",
      "type": "string",
      "description": "Dated route builds and expansions, with their stage: planned, under construction or live.",
      "sortable": true
    },
    {
      "key": "ownership",
      "label": "Ownership / legacy network",
      "type": "string",
      "description": "Acquisitions and mergers behind the provider’s current name.",
      "sortable": true
    },
    {
      "key": "ai_deals",
      "label": "AI / hyperscaler project",
      "type": "string",
      "description": "Named AI and hyperscaler fiber deals and builds, with announcement dates.",
      "sortable": true
    }
  ],
  "records": [
    {
      "id": "american-dark-fiber",
      "name": "American Dark Fiber",
      "url": "https://americandarkfiber.com/",
      "summary": "California dark fiber networks for local buildings, municipalities and data-center interconnects.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "California; local and city networks",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "No network route-mile total published; the leadership team built nearly 3,000 route miles at FTI.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Data-center-to-data-center dark fiber across its California networks.",
        "terms": "Flat-rate dark fiber; quote requires endpoints",
        "fiber_spec": null,
        "delivery": "Public-right-of-way network builds; round-the-clock NOC access.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://americandarkfiber.com/who-we-are/",
          "title": "American Dark Fiber — service design and commercial offer",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "terms",
            "delivery",
            "footprint_scope"
          ]
        },
        {
          "url": "https://americandarkfiber.com/current-offers/",
          "title": "American Dark Fiber current offers — DC-to-DC scope",
          "accessed": "2026-11-11",
          "fields": [
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "aqua-comms",
      "name": "Aqua Comms",
      "url": "https://www.aquacomms.com/",
      "summary": "Transatlantic wavelength and spectrum services, plus selected dark fiber routes and European and U.S. backhaul.",
      "tags": [
        "Europe",
        "North America"
      ],
      "fields": {
        "region": "Global",
        "coverage": "AEC-3: Boston to Slough; transatlantic network",
        "offers": "Dark fiber + wavelength",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "AEC-3 subsea cable: 5,928 km, part of the Amitié system.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Backhaul PoPs include Equinix NY5/NY9, NYI-QTD1, Digital Realty JFK13/DUB2, Equinix DB3/LD6/LD8 and Telehouse West.",
        "terms": "Leases typically 12, 24 or 36 months; capitalised leases; IRUs of 10–20 years",
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": "100G and 400G live; 800G announced",
        "recent_build": "AEC-3 entered service in 2023 as part of Amitié; dark fiber on selected routes.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.aquacomms.com/network/aec-3",
          "title": "Aqua Comms AEC-3 — route, services and terms",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "footprint_scope",
            "terms",
            "recent_build"
          ]
        },
        {
          "url": "https://www.aquacomms.com/network/aec-1",
          "title": "Aqua Comms AEC-1 — named backhaul PoPs",
          "accessed": "2026-11-11",
          "fields": [
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "arcadian-infracom",
      "name": "Arcadian Infracom",
      "url": "https://arcadianinfra.com/",
      "summary": "Developer of U.S. long-haul and middle-mile dark and lit fiber routes, with corridor service dates still in development.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Western and Southwestern United States",
        "offers": "Dark fiber",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "Six long-haul routes in development, adding 3,500+ route miles.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Routes built to reach major data-center hubs and subsea landings.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "LightRiver selected for optical engineering and round-the-clock NOC services.",
        "wavelength_offer": null,
        "recent_build": "LA–Phoenix and LA–Las Vegas under construction for 2028; San Jose–Reno and San Jose–Eureka for 2027.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://arcadianinfra.com/arcadian-infracom-names-lightriver-as-network-operations-center-noc-provider-for-its-expanding-long-haul-and-middle-mile-fiber-network/",
          "title": "Arcadian LightRiver NOC agreement — August 12, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "footprint_scope",
            "delivery"
          ]
        },
        {
          "url": "https://arcadianinfra.com/projects/",
          "title": "Arcadian project status — checked November 2026",
          "accessed": "2026-11-11",
          "fields": [
            "recent_build",
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "arelion",
      "name": "Arelion",
      "url": "https://www.arelion.com/",
      "summary": "European dark fiber and ILA colocation, alongside wavelength transport across Europe and North America.",
      "tags": [
        "Europe",
        "North America"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Dark fiber mainly Northern, Western and Central Europe; wavelengths also North America",
        "offers": "Dark fiber + wavelength",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "80,000 km of Arelion’s own fiber across Europe, North America and Asia (network page, November 2026).",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Equipment housed in third-party colocation facilities, data centers and telehouses, plus amplifier sites.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Dark fiber and ILA colocation on corridors where Arelion owns the duct and fiber.",
        "wavelength_offer": "100GE and 400GE wavelength services",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.arelion.com/dam/Arelion-new-assets/downloads/sustainability/Arelion_SustainabilityReport2024-FINAL.pdf",
          "title": "Arelion Sustainability Report 2024 — asset and service geography",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "offers",
            "reach",
            "dc_scope",
            "delivery"
          ]
        },
        {
          "url": "https://www.arelion.com/products-and-services/network-connectivity/wavelengths",
          "title": "Arelion Wavelengths — service and topology",
          "accessed": "2026-11-11",
          "fields": [
            "wavelength_offer"
          ]
        },
        {
          "url": "https://www.arelion.com/our-network",
          "title": "Arelion network — 80,000 km of own fiber",
          "accessed": "2026-11-11",
          "fields": [
            "footprint_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "att-wholesale",
      "name": "AT&T Wholesale",
      "url": "https://www.business.att.com/industries/wholesale.html",
      "summary": "Business and wholesale optical transport, including metro wavelengths and selected high-capacity data-center connections.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "U.S.; enabled DC locations include Ashburn, Atlanta, Chicago, Dallas, Denver, Los Angeles, Miami, New York, Seattle and Portland",
        "offers": "Wavelength",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "400G wavelengths in more than 40 U.S. metros (June 2026 service footprint).",
        "metro_count": 40,
        "data_centers": null,
        "dc_scope": "400G service ties into more than 130 carrier hotels nationwide.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Provider-managed point-to-point wavelength transport.",
        "wavelength_offer": "400G wavelength circuits across 40+ metros",
        "recent_build": "June 15, 2026: 400G wavelengths expanded to more than 40 U.S. metros, with turn-up in as little as 15 days on eligible routes.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://about.att.com/story/2026/400g-wavelength-connectivity-us-metros.html",
          "title": "AT&T 400G wavelength metro expansion — June 15, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "offers",
            "wavelength_offer",
            "metro_count",
            "footprint_scope",
            "dc_scope",
            "recent_build"
          ]
        },
        {
          "url": "https://www.business.att.com/products/wavelength-services.html",
          "title": "AT&T Wavelength Services — service handoff and transport",
          "accessed": "2026-11-11",
          "fields": [
            "delivery"
          ]
        },
        {
          "url": "https://www.business.att.com/industries/wholesale.html",
          "title": "AT&T Wholesale portfolio — metro and long-haul wavelengths",
          "accessed": "2026-11-11",
          "fields": [
            "reach",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "big-fiber",
      "name": "Bandwidth Infrastructure Group (BIG Fiber)",
      "url": "https://bigfiber.com/",
      "summary": "Metro dark fiber serving San Francisco Bay Area, Greater Atlanta and Greater Portland data centers and enterprises.",
      "tags": [
        "North America",
        "Metro"
      ],
      "fields": {
        "region": "North America",
        "coverage": "San Francisco Bay Area; Greater Atlanta; Greater Portland",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": 310,
        "route_km": null,
        "footprint_scope": "310+ route miles in the San Francisco Bay Area alone; the Atlanta and Portland networks come on top.",
        "metro_count": null,
        "data_centers": 65,
        "dc_scope": "65+ Bay Area data centers on-net.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Buried high-count dark fiber network; provider publishes an on-net building list.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://bigfiber.com/san-francisco-bay-area-dark-fiber-solutions/",
          "title": "BIG Fiber San Francisco Bay Area — route miles and DC reach",
          "accessed": "2026-11-11",
          "fields": [
            "route_miles",
            "footprint_scope",
            "data_centers",
            "dc_scope",
            "offers"
          ]
        },
        {
          "url": "https://bigfiber.com/about-us/network/",
          "title": "BIG Fiber network — metro markets and buried infrastructure",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "bluebird-fiber",
      "name": "Bluebird Fiber",
      "url": "https://bluebirdfiber.com/dark-fiber/",
      "summary": "Midwest dark fiber leases on the combined Bluebird and former Everstream network, with dense metro rings.",
      "tags": [
        "North America",
        "Metro"
      ],
      "fields": {
        "region": "North America",
        "coverage": "12 U.S. states: Minnesota, Wisconsin, Michigan, Iowa, Illinois, Indiana, Ohio, Missouri, Kansas, Oklahoma, Tennessee and Kentucky",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": 36000,
        "route_km": null,
        "footprint_scope": "36,000+ route miles after the Everstream purchase, Kansas to Ohio and north to the Canadian border; 450+ PoPs in 12 states.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Leased fiber strands",
        "fiber_spec": null,
        "delivery": "Dense metro rings; route maps, monitoring options and local field support.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": "Bought substantially all of Everstream’s assets and operations on March 6, 2026; the combined network sells as Bluebird Fiber.",
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://bluebirdfiber.com/dark-fiber/",
          "title": "Bluebird Dark Fiber — footprint, lease and network design",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "route_miles",
            "footprint_scope",
            "dc_scope",
            "terms",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://bluebirdfiber.com/bluebird-fiber-completes-purchase-of-everstream-assets/",
          "title": "Bluebird completes Everstream purchase — March 6, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "footprint_scope",
            "ownership"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "bso",
      "name": "BSO",
      "url": "https://www.bso.co/",
      "summary": "Tokyo metro dark fiber connectivity and European data-center interconnect infrastructure for financial and AI workloads.",
      "tags": [
        "Asia-Pacific",
        "Europe"
      ],
      "fields": {
        "region": "Asia-Pacific",
        "coverage": "Tokyo: KVH Tokyo DC1, Equinix TY3 and AT TOKYO, using facility names in the announcement",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Named Tokyo metro data-center endpoints.",
        "terms": null,
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": "100G+ DWDM interconnection for DataOne campus infrastructure",
        "recent_build": null,
        "ownership": null,
        "ai_deals": "November 2024: DataOne AI hosting campuses in Grenoble/Eybens and Lyon/Villefontaine, linked by BSO dark fiber and 100G+ DWDM."
      },
      "sources": [
        {
          "url": "https://www.bso.co/all-insights/tokyo-metro-network",
          "title": "BSO Tokyo metro dark fiber — 2015 announcement, updated August 2024",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "dc_scope"
          ]
        },
        {
          "url": "https://www.bso.co/all-insights/bso-unveils-dataone-europes-first-giga-scale-ai-hosting-data-centre",
          "title": "BSO DataOne announcement — November 26, 2024, updated May 2025",
          "accessed": "2026-11-11",
          "fields": [
            "wavelength_offer",
            "ai_deals",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "cirion",
      "name": "Cirion Technologies",
      "url": "https://www.ciriontechnologies.com/en/connectivity/digital-infrastructure/dark-fiber/",
      "summary": "Latin American dark fiber with customer-operated optics, including a documented Caracas metro deployment.",
      "tags": [
        "Latin America"
      ],
      "fields": {
        "region": "Latin America",
        "coverage": "Caracas, Venezuela; documented metro rollout for ISPs",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": null,
        "fiber_spec": null,
        "delivery": "Architecture, deployment, monitoring, operation and fiber-management professional services offered.",
        "wavelength_offer": null,
        "recent_build": "February 2025: Caracas metro dark fiber rollout alongside Cirion backhaul.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.ciriontechnologies.com/en/connectivity/digital-infrastructure/dark-fiber/",
          "title": "Cirion Dark Fiber — service and support",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "delivery"
          ]
        },
        {
          "url": "https://press.ciriontechnologies.com/2025/02/21/dark-fiber-caracas/",
          "title": "Cirion Caracas dark fiber rollout — February 21, 2025",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "recent_build"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "cityfibre",
      "name": "CityFibre",
      "url": "https://cityfibre.com/partners/products/dark-fibre",
      "summary": "Wholesale dark fibre for partners running their own optical equipment, with site-to-site and access applications.",
      "tags": [
        "Europe",
        "Metro"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "United Kingdom",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Metro dark fibre supports site-to-data-center aggregation and onward transport.",
        "terms": null,
        "fiber_spec": "New builds G.657.A1; some existing routes G.652",
        "delivery": "Metro service terminates on a 1U LC/APC patch panel, with a wall-mounted termination option.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://cityfibre.com/partners/products/dark-fibre",
          "title": "CityFibre partner Dark Fibre — service and fiber-type restrictions",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "fiber_spec",
            "offers"
          ]
        },
        {
          "url": "https://cdn.cityfibre.com/Partner-page/Downloads/dark-fibre.pdf",
          "title": "CityFibre Metro Dark Fibre product sheet",
          "accessed": "2026-11-11",
          "fields": [
            "reach",
            "delivery",
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "cogent",
      "name": "Cogent Communications",
      "url": "https://www.cogentco.com/",
      "summary": "Optical wavelength transport for North American data-center interconnects, with metro and coast-to-coast routes.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "United States; Canada; Mexico",
        "offers": "Wavelength",
        "reach": "Metro + long haul",
        "route_miles": 94700,
        "route_km": null,
        "footprint_scope": "94,700+ intercity route miles plus 34,400+ metro route miles on the Q3 2026 network map.",
        "metro_count": null,
        "data_centers": 1000,
        "dc_scope": "1,000+ carrier-neutral data centers on the wavelength network.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Route maps, latency metrics and KMZ available from the provider.",
        "wavelength_offer": "10G, 100G and 400G; metro and long-haul wavelengths",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.cogentco.com/files/docs/network/transport/brochure_wavelength.pdf",
          "title": "Cogent Optical Wavelengths — November 2025 brochure",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "data_centers",
            "dc_scope",
            "delivery"
          ]
        },
        {
          "url": "https://www2.cogentco.com/files/docs/network/maps/map_americas.pdf",
          "title": "Cogent Q3 2026 network map — intercity and metro reported separately",
          "accessed": "2026-11-11",
          "fields": [
            "route_miles",
            "footprint_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "colt",
      "name": "Colt",
      "url": "https://www.colt.net/products/networking/dark-fibre",
      "summary": "Metro and long-haul dark fibre for wholesale and enterprise networks, including the combined Colt and former Lumen EMEA fiber estate.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Europe and Asia; new dark-fibre orders on the combined Colt infrastructure",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": 51,
        "data_centers": 1100,
        "dc_scope": "1,100+ connected data centers and 31,000+ enterprise buildings across 32 countries on the dark fibre network.",
        "terms": null,
        "fiber_spec": "Metro: ITU G.652; long haul: ITU G.655 (LEAF)",
        "delivery": "Custom ring topology, route diversity and optional out-of-band monitoring.",
        "wavelength_offer": "Wave and Private Wave up to 400G, plus spectrum, across metro, national and international routes",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.colt.net/products/networking/dark-fibre",
          "title": "Colt Dark Fibre — fiber standards and topology",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "dc_scope",
            "fiber_spec",
            "delivery",
            "offers",
            "data_centers"
          ]
        },
        {
          "url": "https://coltonlinehelp.colt.net/portfolio-optimisation/dark-fibre/",
          "title": "Colt product convergence — former Lumen EMEA and metro coverage",
          "accessed": "2026-11-11",
          "fields": [
            "coverage",
            "reach",
            "metro_count"
          ]
        },
        {
          "url": "https://www.colt.net/products/networking/wavelength",
          "title": "Colt Wave, Private Wave and Spectrum",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "wavelength_offer"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "conterra",
      "name": "Conterra Networks",
      "url": "https://conterra.com/dark-fiber/",
      "summary": "Custom dark fiber segments, rings and networks, with optical transport for regional carrier and enterprise buyers.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "U.S. network map includes Texas, Carolinas, Southwest and Gulf Coast routes",
        "offers": "Dark fiber + wavelength",
        "reach": null,
        "route_miles": 13000,
        "route_km": null,
        "footprint_scope": "13,000 route miles on the carrier network map, with planned and leased routes marked separately.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": null,
        "fiber_spec": "G.652.D as stated in the product sheet",
        "delivery": "Buried fiber; segment, ring or custom network designs; power and space options.",
        "wavelength_offer": "400G wave services",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.conterra.com/wp-content/uploads/2023/07/Carrier-Maps.pdf",
          "title": "Conterra carrier network map — published footprint",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "route_miles",
            "footprint_scope"
          ]
        },
        {
          "url": "https://conterra.com/wp-content/uploads/2024/08/Conterra-Dark-Fiber.pdf",
          "title": "Conterra Dark Fiber product sheet",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "fiber_spec",
            "delivery"
          ]
        },
        {
          "url": "https://conterra.com/wp-content/uploads/2024/08/WAVES-1.pdf",
          "title": "Conterra 400G Wave Services product sheet",
          "accessed": "2026-11-11",
          "fields": [
            "wavelength_offer",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "crosslake-fibre",
      "name": "Crosslake Fibre",
      "url": "https://crosslakefibre.ca/",
      "summary": "Dark fiber and lit capacity across Lake Ontario and the English Channel, with further Canadian intercity infrastructure in development.",
      "tags": [
        "North America",
        "Europe"
      ],
      "fields": {
        "region": "Global",
        "coverage": "Toronto–Buffalo; Slough–Paris; Toronto–Montreal in development",
        "offers": "Dark fiber",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "Toronto–Buffalo: 131 km including 59 km under Lake Ontario; Slough–Paris CrossChannel route: about 550 km.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "CrossChannel names Equinix LD4, Interxion PAR3 and Equinix PA7 endpoints.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "CrossChannel entered service December 2021; dark fiber and Ciena-based scalable lit capacity.",
        "wavelength_offer": null,
        "recent_build": "Maple Leaf Fibre, Toronto–Montreal, in development with an end-2026 target.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://crosslakefibre.ca/network/",
          "title": "Crosslake network — live and development routes",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "footprint_scope",
            "recent_build"
          ]
        },
        {
          "url": "https://crosslakefibre.ca/2021/12/07/crosschannel-fibre-between-uk-france-now-in-service/",
          "title": "CrossChannel enters service — December 7, 2021",
          "accessed": "2026-11-11",
          "fields": [
            "dc_scope",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "dfa",
      "name": "DFA / Dark Fibre Africa",
      "url": "https://dfafrica.co.za/",
      "summary": "South African open-access metro and intercity dark fiber, with leased pairs and named long-haul data-center corridors.",
      "tags": [
        "Africa"
      ],
      "fields": {
        "region": "Africa",
        "coverage": "South Africa; long-haul corridors include Teraco Isando–River Horse Valley and Great Westerford–Yzerfontein",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "14,000 km dark fibre network across South Africa.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Long-haul routes to Teraco Isando, River Horse Valley and Great Westerford.",
        "terms": "Metro: 1–5, 10 or 15-year work orders; long haul: 5, 10 or 15 years",
        "fiber_spec": null,
        "delivery": "Customer supplies the transmission equipment; access builds and cross-connects are quoted separately.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://dfafrica.co.za/",
          "title": "DFA open-access network — published geography and network length",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "offers",
            "footprint_scope"
          ]
        },
        {
          "url": "https://dfafrica.co.za/infrastructure/peregrine-metro/",
          "title": "DFA Peregrine Metro — current terms and handoff",
          "accessed": "2026-11-11",
          "fields": [
            "coverage",
            "reach",
            "terms",
            "delivery"
          ]
        },
        {
          "url": "https://dfafrica.co.za/infrastructure/peregrine-long-haul/",
          "title": "DFA Peregrine Long Haul — named routes, endpoints and exclusions",
          "accessed": "2026-11-11",
          "fields": [
            "coverage",
            "reach",
            "terms",
            "dc_scope",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "dqe",
      "name": "DQE Communications",
      "url": "https://dqe.com/dark-fiber/",
      "summary": "Dark fiber leases and long-term rights on regional routes in Pennsylvania, West Virginia and Maryland.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Pennsylvania; West Virginia; Maryland",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": 5000,
        "route_km": null,
        "footprint_scope": "5,000+ route miles across Pennsylvania, West Virginia and Maryland.",
        "metro_count": null,
        "data_centers": 24,
        "dc_scope": "24 data centers on the DQE network.",
        "terms": "Leases and long-term rights agreements",
        "fiber_spec": null,
        "delivery": "Point-to-point, hub-and-spoke and diverse rings; local crews monitor routes around the clock.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://dqe.com/dark-fiber/",
          "title": "DQE Dark Fiber — regional service, route miles and topology",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "route_miles",
            "footprint_scope",
            "terms",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://dqe.com/our-company/",
          "title": "DQE company — wider data-center network",
          "accessed": "2026-11-11",
          "fields": [
            "data_centers",
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "eunetworks",
      "name": "euNetworks",
      "url": "https://eunetworks.com/services/dark-fibre/",
      "summary": "European dark fibre pairs and bulk fibre for inter-data-center links within and between cities.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "European metro and intercity networks",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": 18,
        "data_centers": 600,
        "dc_scope": "600+ data centers linked by the dark fibre offer; product-page count.",
        "terms": "Lease of fiber pairs and bulk fiber",
        "fiber_spec": "G.652; G.655; G.654; G.657",
        "delivery": "Custom street-level routing and advanced fiber monitoring; euNetworks advertises an 8-hour SLA time to fix.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://eunetworks.com/services/dark-fibre/",
          "title": "euNetworks Dark Fibre — metro coverage, DCs and service features",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "metro_count",
            "data_centers",
            "dc_scope",
            "terms",
            "fiber_spec",
            "delivery",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "eurofiber",
      "name": "Eurofiber",
      "url": "https://www.eurofiber.com/node/424",
      "summary": "European open-access fiber infrastructure with dark fiber and international long-haul connectivity.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Netherlands; Belgium; France; Germany; Luxembourg",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "77,500 km of optical fiber network over 29,500 km of unique trench.",
        "metro_count": null,
        "data_centers": 300,
        "dc_scope": "300+ connected data centers across the group network.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "International long-haul routes and local fiber access for hyperscalers, carriers and cloud providers.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.eurofiber.com/node/424",
          "title": "Eurofiber international network — fiber versus trench length and connected DCs",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "footprint_scope",
            "data_centers",
            "dc_scope",
            "delivery",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "exa-infrastructure",
      "name": "EXA Infrastructure",
      "url": "https://www.exainfra.net/capability-pages/infrastructure",
      "summary": "Owned dark fibre and duct for long-haul backbones, metro access and private data-center interconnect builds.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "European backbone, metro networks and intercontinental subsea infrastructure",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": 180000,
        "footprint_scope": "180,000+ route km of fiber and duct, owned and operated, terrestrial and subsea.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Private data-center interconnect and campus/metro duct builds offered.",
        "terms": "Long-term IRUs on a 20-year-plus horizon, flexible leases and temporary pairs (EXA’s published terms)",
        "fiber_spec": "Long haul: G.652.D low loss and Corning LEAF G.655; metro: G.652",
        "delivery": "EXA specifies long-haul attenuation below 0.20 dB/km and metro below 0.25 dB/km at 1550 nm.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": "GTT’s former infrastructure division, sold to I Squared Capital in September 2021 and renamed EXA Infrastructure.",
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.exainfra.net/capability-pages/infrastructure",
          "title": "EXA infrastructure — route-km, dark fibre, duct and contract options",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "route_km",
            "footprint_scope",
            "terms",
            "fiber_spec",
            "dc_scope",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://www.gtt.net/wp-content/uploads/media/3424/gtt-completes-sale-of-infrastructure-division.pdf",
          "title": "GTT infrastructure sale closes — September 17, 2021",
          "accessed": "2026-11-11",
          "fields": [
            "ownership"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "fatbeam",
      "name": "Fatbeam",
      "url": "https://www.fatbeamfiber.com/",
      "summary": "Western U.S. dark fiber leases and fiber infrastructure for commercial, education, government and carrier networks.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Washington; Oregon; Montana; Arizona; New Mexico; Idaho; Wyoming; Nevada",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": 1252,
        "route_km": null,
        "footprint_scope": "1,252 route miles across 13 metro markets (June 2023 filing); 150,000+ fiber miles on the current site.",
        "metro_count": 13,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Dark fiber leases",
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.fatbeamfiber.com/",
          "title": "Fatbeam — dark fiber lease service",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "terms"
          ]
        },
        {
          "url": "https://www.fatbeamfiber.com/our-network",
          "title": "Fatbeam network — states and strand length",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "footprint_scope"
          ]
        },
        {
          "url": "https://edocs.puc.state.or.us/efdocs/HNA/cp1488hna133333.pdf",
          "title": "Fatbeam Oregon regulatory notification — June 9, 2023",
          "accessed": "2026-11-11",
          "fields": [
            "route_miles",
            "metro_count",
            "footprint_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "fiberlight",
      "name": "FiberLight",
      "url": "https://www.fiberlight.com/industries/data-centers/",
      "summary": "Metro and long-haul dark fiber with custom routes for data centers, hyperscalers, carriers and enterprises.",
      "tags": [
        "North America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Texas; Northern Virginia; Washington DC; Maryland; Atlanta; Tampa Bay",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": 20000,
        "route_km": null,
        "footprint_scope": "20,000+ fiber route miles and 3 million+ fiber miles.",
        "metro_count": null,
        "data_centers": 280,
        "dc_scope": "280 serviceable data centers, 300,000 pre-qualified buildings and 1,900+ towers.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Custom construction, dark fiber operations and maintenance, and colocation for long-haul applications.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.fiberlight.com/industries/data-centers/",
          "title": "FiberLight data-center network and dark fiber capabilities",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "route_miles",
            "footprint_scope",
            "data_centers",
            "dc_scope",
            "delivery",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "firstlight",
      "name": "FirstLight",
      "url": "https://www.firstlight.net/services/fiber-network/dark-fiber/",
      "summary": "Dedicated unlit fiber and custom topologies for Northeast and mid-Atlantic enterprise and carrier networks.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Northeast and mid-Atlantic United States",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "Northeast and mid-Atlantic network; FirstLight’s pages publish differing mileage totals.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Data-center interconnection offered for hyperscaler networks.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Point-to-point, point-to-multipoint and ring topologies; customizable routes, handoffs and fiber counts.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.firstlight.net/services/fiber-network/dark-fiber/",
          "title": "FirstLight Dark Fiber — topology and regional scope",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "delivery",
            "footprint_scope",
            "offers"
          ]
        },
        {
          "url": "https://www.firstlight.net/ai-hyperscalers/",
          "title": "FirstLight hyperscaler network capabilities",
          "accessed": "2026-11-11",
          "fields": [
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "gasline",
      "name": "GasLINE",
      "url": "https://www.gasline.de/dark-fibre/",
      "summary": "German dark fibre infrastructure, including gas-pipeline-corridor routes and connections to telecom hubs.",
      "tags": [
        "Europe",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Germany; regional and international network interconnection",
        "offers": "Dark fiber",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "65,000+ km optical fiber network, much of it in gas-pipeline corridors, with 5,000 km more planned through 2029.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Connects telehouses, PoPs and data centers in 200+ cities.",
        "terms": null,
        "fiber_spec": "Standard single-mode ITU-T G.652 and dispersion-shifted ITU-T G.655",
        "delivery": "Much of the network is in gas-pipeline corridors; customer-specific extensions and round-the-clock NOC support.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.gasline.de/dark-fibre/",
          "title": "GasLINE Dark Fibre — network scope, standards and expansion",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "footprint_scope",
            "dc_scope",
            "fiber_spec",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://www.gasline.de/loesungen/wholesale-connectivity/",
          "title": "GasLINE Wholesale Connectivity — nationwide backbone",
          "accessed": "2026-11-11",
          "fields": [
            "reach"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "globalconnect",
      "name": "GlobalConnect Carrier",
      "url": "https://globalconnectcarrier.com/services/dark-fiber/",
      "summary": "Northern European dark fiber backbone and metro access for carriers and infrastructure buyers.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Nordics and Northern Germany",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "100,000+ km of dark fiber infrastructure serving 50+ cities.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Metro access network reaches major Nordic data-center hubs.",
        "terms": "Monthly recurring charge, prepaid lease or IRU",
        "fiber_spec": "Backbone: ITU-T G.652 or G.655; access also lists G.657",
        "delivery": "Backbone ILA and regeneration stations about every 80 km.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://globalconnectcarrier.com/services/dark-fiber/",
          "title": "GlobalConnect Carrier Dark Fiber — backbone and leasing",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "reach",
            "terms",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://globalconnectcarrier.com/products/access-services/dark-fiber-access/",
          "title": "GlobalConnect Dark Fiber Access — metro scope and standards",
          "accessed": "2026-11-11",
          "fields": [
            "coverage",
            "footprint_scope",
            "fiber_spec",
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "hunter-communications",
      "name": "Hunter Communications",
      "url": "https://hunterfiber.com/enterprise/data-products/",
      "summary": "Regional dark fiber for enterprise networks in Oregon and Northern California, with customer-operated transmission equipment.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Oregon and Northern California; qualify enterprise routes separately",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "IRU contracts",
        "fiber_spec": null,
        "delivery": "Strands, endpoints and any diversity specified on the order; customer supplies and maintains lighting equipment.",
        "wavelength_offer": null,
        "recent_build": "March 2026: accelerated expansion in Salem, Eugene and southern Oregon.",
        "ownership": "Acquisition by Oak Hill Capital completed March 31, 2026.",
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://hunterfiber.com/enterprise/data-products/",
          "title": "Hunter enterprise services — dark fiber IRUs",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "terms"
          ]
        },
        {
          "url": "https://hunterfiber.com/serviceareas/",
          "title": "Hunter service geography",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage"
          ]
        },
        {
          "url": "https://hunterfiber.com/wp-content/uploads/2020/10/Data-Master-Services-Agreement_Vol.1.0_8.30.18-with-signature-line.pdf",
          "title": "Hunter Data and Dark Fiber MSA — legacy published service definition",
          "accessed": "2026-11-11",
          "fields": [
            "delivery"
          ]
        },
        {
          "url": "https://hunterfiber.com/hunter-communications-completes-acquisition-by-oak-hill-capital-to-accelerate-fiber-expansion-across-oregon/",
          "title": "Hunter acquisition closes — March 31, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "ownership",
            "recent_build"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "lightpath",
      "name": "Lightpath",
      "url": "https://lightpathfiber.com/dark-fiber/",
      "summary": "Owned metro dark fiber and selected long-haul routes for data-center and enterprise connectivity.",
      "tags": [
        "North America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "U.S. metro footprint including New York, Boston, Miami, Ashburn and Columbus",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro + long haul",
        "route_miles": 12600,
        "route_km": null,
        "footprint_scope": "12,600+ route miles of owned fiber across 11 metro markets.",
        "metro_count": 11,
        "data_centers": 194,
        "dc_scope": "194+ on-net data centers on the dark fiber product page.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Rapidpath: as fast as 15 days on selected pre-engineered inter-data-center routes in New York metro, Boston and Miami.",
        "wavelength_offer": "Wavelengths up to 800 Gbps on the Columbus AI-grade network",
        "recent_build": "January 2026: Columbus network under construction reaches 304 route miles; Lightpath also cites a 392-route-mile Columbus–Chicago long-haul system.",
        "ownership": null,
        "ai_deals": "Columbus AI-grade network anchored by a major hyperscaler: 102 route miles announced April 2025, grown to 304 route miles after a third award in January 2026. About 102 miles were scheduled for 1H 2026, the rest for 1H 2027."
      },
      "sources": [
        {
          "url": "https://lightpathfiber.com/dark-fiber/",
          "title": "Lightpath Dark Fiber — owned footprint and Rapidpath",
          "accessed": "2026-11-11",
          "fields": [
            "coverage",
            "data_centers",
            "dc_scope",
            "delivery",
            "footprint_scope",
            "metro_count",
            "reach",
            "recent_build",
            "region",
            "route_miles"
          ]
        },
        {
          "url": "https://lightpathfiber.com/news/lightpath-enters-columbus-ai-grade-network/",
          "title": "Lightpath Columbus AI-grade network — April 1, 2025",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals",
            "recent_build",
            "wavelength_offer",
            "offers"
          ]
        },
        {
          "url": "https://lightpathfiber.com/news/lightpath-deepens-columbus-ai-infrastructure-third-major-network-award/",
          "title": "Lightpath third Columbus network award, 304 route miles — January 20, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals",
            "recent_build"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "lightstorm",
      "name": "Lightstorm",
      "url": "https://www.lightstorm.net/",
      "summary": "Carrier-neutral optical and virtual data-center interconnect services on an Indian fiber backbone.",
      "tags": [
        "Asia-Pacific"
      ],
      "fields": {
        "region": "Asia-Pacific",
        "coverage": "India; DC-to-DC wave and virtual connectivity",
        "offers": "Wavelength",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "30,000+ km fiber network across India.",
        "metro_count": null,
        "data_centers": 70,
        "dc_scope": "70+ data centers anchor the India network.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Mumbai and Noida NOCs act as DC/DR for round-the-clock monitoring.",
        "wavelength_offer": "Layer-1 optical network and DC-to-DC wave connectivity",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.lightstorm.net/our-presence/india",
          "title": "Lightstorm India network — published scope",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "offers",
            "wavelength_offer",
            "footprint_scope",
            "data_centers",
            "dc_scope",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "liquid-intelligent-technologies",
      "name": "Liquid Intelligent Technologies",
      "url": "https://liquid.tech/",
      "summary": "Pan-African fiber infrastructure and dark fibre services governed by route-specific service schedules.",
      "tags": [
        "Africa"
      ],
      "fields": {
        "region": "Africa",
        "coverage": "Pan-African network; primarily Central, Eastern and Southern Africa",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "110,000 km fiber network across Africa (October 2024).",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Quantities and fees specified in the customer order form",
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://liquid.tech/wp-content/uploads/2024/10/Q2-FY25-PRESS-RELEASE-FINAL.pdf",
          "title": "Liquid Q2 FY25 results — published network scope",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "footprint_scope"
          ]
        },
        {
          "url": "https://go.liquid.tech/rs/703-XQE-934/images/Liquid%20Intelligent%20Technologies%20Dark%20Fibre%20Service%20Schedule.pdf",
          "title": "Liquid Dark Fibre Service Schedule",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "terms"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "lumen",
      "name": "Lumen",
      "url": "https://www.lumen.com/en-us/services/dark-fiber.html",
      "summary": "Customer-operated dark fiber across North American metro and intercity routes, with an optional managed optical network.",
      "tags": [
        "North America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "North American metro and intercity routes",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro + long haul",
        "route_miles": 25000,
        "route_km": null,
        "footprint_scope": "25,000+ route miles of low-loss next-generation intercity fiber; 163,000 on-net buildings and 530+ sites with up to 400G on the same product page.",
        "metro_count": null,
        "data_centers": 2200,
        "dc_scope": "2,200+ on-net third-party data centers on the dark fiber product page.",
        "terms": "Custom pricing",
        "fiber_spec": null,
        "delivery": "Street-level designs and optional managed optical fiber network.",
        "wavelength_offer": "10G, 100G and 400G on custom paths or predefined RapidRoutes",
        "recent_build": "May 2026: NorthLine, a new Seattle–Minneapolis route for 100G and 400G wavelengths, targeted for service by end-2026.",
        "ownership": "Sold its consumer fiber-to-the-home business (Quantum Fiber) to AT&T for $5.75 billion, closed February 2, 2026; Lumen keeps its enterprise and wholesale fiber and its intercity backbone.",
        "ai_deals": "Private Connectivity Fabric deals with Microsoft (July 2024), Meta (October 2024), AWS (October 2024) and Google (November 2024): dedicated fiber and new routes between AI data centers."
      },
      "sources": [
        {
          "url": "https://www.lumen.com/en-us/services/dark-fiber.html",
          "title": "Lumen Dark Fiber — product and network specifications",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "route_miles",
            "footprint_scope",
            "data_centers",
            "dc_scope",
            "terms",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://s21.q4cdn.com/756714007/files/doc_news/Lumen-and-Meta-Partner-to-Drive-AI-Network-Expansion-2024.pdf",
          "title": "Lumen Meta Private Connectivity Fabric partnership — October 21, 2024",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals"
          ]
        },
        {
          "url": "https://ir.lumen.com/news/news-details/2024/Microsoft-and-Lumen-Technologies-partner-to-power-the-future-of-AI-and-enable-digital-transformation-to-benefit-hundreds-of-millions-of-customers/default.aspx",
          "title": "Lumen Microsoft network partnership — July 24, 2024",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals"
          ]
        },
        {
          "url": "https://s21.q4cdn.com/756714007/files/doc_news/Lumen-and-AWS-Partner-to-Unlock-the-Power-of-Generative-AI-Through-Enhanced-Network-Operations-and-Delivery-2024.pdf",
          "title": "Lumen AWS fiber connectivity agreement — October 30, 2024",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals"
          ]
        },
        {
          "url": "https://s21.q4cdn.com/756714007/files/doc_news/Lumen-Technologies-Partners-with-Google-Cloud-to-Drive-AI-Innovation-and-Accelerate-Digital-Transformation-2024.pdf",
          "title": "Lumen Google dedicated-fiber partnership — November 5, 2024",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals"
          ]
        },
        {
          "url": "https://www.lumen.com/en-us/services/wavelengths.html",
          "title": "Lumen Wavelength Solutions — optical speeds and routing",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "wavelength_offer"
          ]
        },
        {
          "url": "https://s21.q4cdn.com/756714007/files/doc_news/Lumen-Expands-its-U-S--Network-with-NorthLine-a-New-Northern-Fiber-Route-Built-for-AI-Data-Movement-2026.pdf",
          "title": "Lumen NorthLine Seattle–Minneapolis — May 12, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "recent_build"
          ]
        },
        {
          "url": "https://s21.q4cdn.com/756714007/files/doc_news/Lumen-Completes-Sale-of-Consumer-Fiber-to-the-Home-Business-to-ATT-2026.pdf",
          "title": "Lumen completes sale of consumer fiber-to-the-home business to AT&T — February 2026",
          "accessed": "2026-11-11",
          "fields": [
            "ownership"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "mox-networks",
      "name": "MOX Networks",
      "url": "https://moxnetworks.com/network/",
      "summary": "Dark fiber on named U.S. corridors alongside wavelength and dark-fiber-channel services.",
      "tags": [
        "North America",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Columbus–Ashburn–Atlanta; Seattle–Portland–Hillsboro",
        "offers": "Dark fiber",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Named access includes Equinix in Ashburn and Seattle, Westin Seattle and EdgeConneX Seattle.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Physical dark fiber and dark-fiber channels are distinct offers; Japan and Brazil routes on this page advertise channels and wavelengths.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://moxnetworks.com/network/",
          "title": "MOX network — physical dark fiber corridors versus channels",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "dc_scope",
            "delivery",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "neos-networks",
      "name": "Neos Networks",
      "url": "https://neosnetworks.com/products-services/dark-fibre/",
      "summary": "UK dark fibre for backbone expansion, backhaul and data-center interconnect, with custom builds and partner access where needed.",
      "tags": [
        "Europe"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "United Kingdom",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": 90,
        "dc_scope": "90+ UK data centers on the Neos network.",
        "terms": "Route-specific quotations",
        "fiber_spec": "G.652 and/or G.655; duct and sub-duct options",
        "delivery": "Typical on-net delivery 30–90 days; civil works typically 90–180 days, with complex projects longer.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://neosnetworks.com/products-services/dark-fibre/",
          "title": "Neos Dark Fibre — coverage, specifications and typical delivery",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "terms",
            "fiber_spec",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://neosnetworks.com/our-network/",
          "title": "Neos UK network — wider connected data centers",
          "accessed": "2026-11-11",
          "fields": [
            "data_centers",
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "open-fiber",
      "name": "Open Fiber",
      "url": "https://openfiber.it/",
      "summary": "Italian wholesale unlit fiber pairs with same-PoP, cross-PoP and extraurban long-distance connection options.",
      "tags": [
        "Europe"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Italy; connections between operator-selected endpoints",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Exclusive use of passive fiber pairs; provider responsible for physical cable continuity",
        "fiber_spec": null,
        "delivery": "Direct mode within a PoP area; Indirect mode across different PoP areas.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://openfiber.it/app/uploads/2025/06/Scheda-Tecnica-Dark-Fiber-.pdf",
          "title": "Open Fiber Dark Fiber technical sheet — June 2025",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "offers",
            "delivery"
          ]
        },
        {
          "url": "https://openfiber.it/glossario/?l=p",
          "title": "Open Fiber glossary — Dark Fiber and Long Distance",
          "accessed": "2026-11-11",
          "fields": [
            "reach",
            "terms"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "relined",
      "name": "Relined Fiber Network",
      "url": "https://relined.eu/netwerk/longhaul/dark-fiber-nederland/",
      "summary": "Dark fiber metro and national connections across the Netherlands, Germany and Denmark.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Netherlands; Germany; Denmark",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "51,000+ network km including preferred suppliers; 13,500+ km in the Netherlands.",
        "metro_count": null,
        "data_centers": 110,
        "dc_scope": "More than 110 carrier-neutral data centers connected in the Netherlands, with redundant connections reported.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Amsterdam metro advertises delivery in 1–3 weeks; Netherlands network includes railway-adjacent paths.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://relined.eu/netwerk/longhaul/dark-fiber-nederland/",
          "title": "Relined Netherlands — national network, Amsterdam metro and DC reach",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "footprint_scope",
            "data_centers",
            "dc_scope",
            "delivery",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "retn",
      "name": "RETN",
      "url": "https://retn.net/",
      "summary": "European metro dark fiber and international optical transport, with documented Warsaw and Germany–Poland routes.",
      "tags": [
        "Europe"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Warsaw metro; access to RETN international long-haul backbone",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Warsaw metro expansion describes independent routes to data centers.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Local dark fiber connections with access to the intercity backbone.",
        "wavelength_offer": null,
        "recent_build": "May 2023: 780 km Berlin–Poznań–Warsaw route launched along gas and oil infrastructure.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://retn.net/news-events/RETN_expands_its_metro_fiber_network_in_Warsaw",
          "title": "RETN Warsaw metro expansion — dark fiber and backbone access",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "dc_scope",
            "delivery"
          ]
        },
        {
          "url": "https://retn.net/news-events/RETN_Launches_New_Fibre_Route_Connecting_Berlin_Poznan_and_Warsaw",
          "title": "RETN Berlin–Poznań–Warsaw route — May 10, 2023",
          "accessed": "2026-11-11",
          "fields": [
            "recent_build"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "segra",
      "name": "Segra",
      "url": "https://www.segra.com/solutions/dark-fiber/",
      "summary": "Custom dark fiber networks with point-to-point, ring and hub-and-spoke configurations for U.S. businesses and carriers.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "24 U.S. states and 26 major markets",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": 44000,
        "route_km": null,
        "footprint_scope": "44,000 fiber route miles across 24 states (April 2025), including the former UPN network.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Flexible lease and IRU terms",
        "fiber_spec": null,
        "delivery": "Single or dual entrances; point-to-point, hub-and-spoke and ring configurations; access to regen sites.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": "Segra and Unite Private Networks merged in 2023; Segra is a standalone fiber company owned by Cox Communications.",
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.segra.com/solutions/dark-fiber/",
          "title": "Segra Dark Fiber — coverage, terms and topology",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "terms",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://www.segra.com/news/segra-appoints-chad-senglaub-ceo/",
          "title": "Segra UPN merger and network footprint — April 1, 2025",
          "accessed": "2026-11-11",
          "fields": [
            "ownership",
            "route_miles",
            "footprint_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "sipartech",
      "name": "Sipartech",
      "url": "https://www.sipartech.com/sipartech-dark-fibre/",
      "summary": "Bespoke dark fiber routes with customer-controlled lighting and provider-maintained fiber.",
      "tags": [
        "Europe",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "European network; custom routes subject to study",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Event rental; 3–15-year rental; IRU of 7, 10 or 15 years; minimum one pair",
        "fiber_spec": "Single-mode G.652.D",
        "delivery": "OTDR characterization at delivery; route mapping on request and optional fiber supervision.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.sipartech.com/sipartech-dark-fibre/",
          "title": "Sipartech Dark Fiber — technical specification and commercial terms",
          "accessed": "2026-11-11",
          "fields": [
            "terms",
            "fiber_spec",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://www.sipartech.com/",
          "title": "Sipartech company network geography",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "sparkle",
      "name": "Sparkle",
      "url": "https://www.tisparkle.com/",
      "summary": "International wavelength, spectrum and tailored dark fiber services on European, Mediterranean and Americas infrastructure.",
      "tags": [
        "Europe",
        "North America",
        "Latin America",
        "Africa",
        "Asia-Pacific"
      ],
      "fields": {
        "region": "Global",
        "coverage": "Europe; Mediterranean; North and South America; Africa and Asia presence",
        "offers": "Dark fiber + wavelength",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "600,000+ km of fiber owned and managed, including submarine cable interests (March 2025).",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "City2City long-haul capacity between major cloud data centers; no DC count stated.",
        "terms": "Lease; ROU/IRU; temporary capacity options",
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": "WDM point-to-point up to 100G in this brochure; tailored dark fiber and spectrum",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.tisparkle.com/sites/all/themes/sparkle/media/our_brochure/pdf/SPARKLE_BROCHURE.pdf",
          "title": "Sparkle corporate brochure — City2City capacity and fiber services",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "terms",
            "dc_scope"
          ]
        },
        {
          "url": "https://www.tisparkle.com/sites/en/files/2025-04/Sparkle%20Corporate%20Presentation%20April%202025_0.pdf",
          "title": "Sparkle corporate presentation — March 2025 network data",
          "accessed": "2026-11-11",
          "fields": [
            "footprint_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "summitig",
      "name": "SummitIG",
      "url": "https://summitig.com/networks/",
      "summary": "Purpose-built dark fiber in U.S. data-center metros and on Virginia regional long-haul routes.",
      "tags": [
        "North America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Northern Virginia; Richmond corridor; Columbus; Chicago; Salt Lake City",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "1,200+ miles of fiber across Northern Virginia and other data-center metros; Phoenix coming soon.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Dedicated data-center networks in Northern Virginia and other named U.S. metros.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Underground metro infrastructure and Virginia regional long-haul dark fiber; custom high-count fiber connections.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://summitig.com/networks/",
          "title": "SummitIG networks — operating markets and planned Phoenix distinction",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "footprint_scope",
            "dc_scope",
            "delivery",
            "offers"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "superloop",
      "name": "Superloop",
      "url": "https://www.superloop.com/enterprise/network/dark-fibre/",
      "summary": "Dedicated unlit fiber on Superloop metro and intercity infrastructure for Australian enterprise networks.",
      "tags": [
        "Asia-Pacific",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Asia-Pacific",
        "coverage": "Australia; metro and intercity network",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "DC service handoff is at the Superloop demarcation; customer manages the cross-connect.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Bidirectional insertion-loss results at 1550 and 1310 nm; OTDR results at 1550 nm supplied at installation.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://site-prod.superloop.com/enterprise/network/dark-fibre/",
          "title": "Superloop Dark Fibre — metro, intercity and applications",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers"
          ]
        },
        {
          "url": "https://files.superloop.com/terms/SLC.DarkFibre-A4DeepDive.pdf",
          "title": "Superloop Dark Fibre deep dive — demarcation and handover tests",
          "accessed": "2026-11-11",
          "fields": [
            "dc_scope",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "tampnet",
      "name": "Tampnet Carrier",
      "url": "https://www.tampnet.com/carrier",
      "summary": "Nordic and European dark fiber, spectrum and optical capacity with offshore-derived subsea route diversity.",
      "tags": [
        "Europe",
        "North America"
      ],
      "fields": {
        "region": "Europe",
        "coverage": "Nordics; UK; continental Europe; selected U.S. cities in wider footprint",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "30+ connected data centers.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Owned passive fiber routes; managed optical fiber network option for hyperscalers.",
        "wavelength_offer": "Long-haul 1G, 10G, 100G and 400G; spectrum and managed optical fiber networks also offered",
        "recent_build": "NORFEST: new near-shore Stavanger–Oslo route connecting 11+ locations.",
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.tampnet.com/carrier",
          "title": "Tampnet Carrier — routes and optical services",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "dc_scope",
            "recent_build",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "tata-communications",
      "name": "Tata Communications",
      "url": "https://www.tatacommunications.com/",
      "summary": "Optical private-line and DWDM connectivity for data-center backbones, with documented Indian metro and intercity deployments.",
      "tags": [
        "Asia-Pacific"
      ],
      "fields": {
        "region": "Asia-Pacific",
        "coverage": "Bengaluru and Mumbai; documented PhonePe deployment",
        "offers": "Wavelength",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "PhonePe deployment links three data centers on 100G DWDM.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Working, protection and tertiary paths in the PhonePe design.",
        "wavelength_offer": "100G private-line DWDM links in the cited deployment",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.tatacommunications.com/hubfs/TaCO-2024/case-studies/doc/swift-transactions-tata-Comms-powers-500M-phonepe-users.pdf",
          "title": "Tata Communications PhonePe private-line case study — 2024",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "dc_scope",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "telstra-infraco",
      "name": "Telstra InfraCo",
      "url": "https://infraco.telstra.com.au/solutions/dark-fibre",
      "summary": "Australian capital-city metro dark fiber pairs for customers operating their own optical equipment.",
      "tags": [
        "Asia-Pacific"
      ],
      "fields": {
        "region": "Asia-Pacific",
        "coverage": "Australian capital-city metropolitan areas for Dark Fibre Premise",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Data Centre–Premise and exchange/POI connections offered; no DC count stated.",
        "terms": "Typical leases 3, 5 or 10 years; standard quote includes a fiber pair",
        "fiber_spec": null,
        "delivery": "On-net delivery target 20 business days; fiber performance report at handover; augmentation quoted case by case.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://infraco.telstra.com.au/solutions/dark-fibre",
          "title": "Telstra InfraCo Dark Fibre — service, contract and handover",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "terms",
            "dc_scope",
            "delivery"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "telxius",
      "name": "Telxius",
      "url": "https://telxius.com/en/",
      "summary": "Subsea and terrestrial capacity connecting Europe and the Americas, with carrier data-center backhaul.",
      "tags": [
        "Europe",
        "North America",
        "Latin America"
      ],
      "fields": {
        "region": "Global",
        "coverage": "Europe and the Americas",
        "offers": "Wavelength",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "100,000+ km of submarine cables and terrestrial backhaul.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "26 landing stations and data centers on the network.",
        "terms": null,
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": "DWDM 10G, 40G and 100G on the capacity sheet",
        "recent_build": null,
        "ownership": null,
        "ai_deals": "MAREA (2018): transatlantic cable built with Facebook and Microsoft, with QTS Richmond backhaul."
      },
      "sources": [
        {
          "url": "https://telxius.com/en/about-telxius/who-we-are/",
          "title": "Telxius corporate network scope",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "footprint_scope",
            "dc_scope"
          ]
        },
        {
          "url": "https://telxius.com/pdf/en/Capacity-Services-Fact-sheet.pdf",
          "title": "Telxius capacity services — legacy product sheet",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "reach",
            "wavelength_offer"
          ]
        },
        {
          "url": "https://telxius.com/en/qts-and-telxius-collaborate-to-deliver-lowest-latency-connectivity-to-and-from-europe-and-latin-america-via-the-new-high-capacity-marea-brusa-subsea-cable-systems/",
          "title": "Telxius QTS interconnection and MAREA partners — October 23, 2018",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "ufinet",
      "name": "UFINET",
      "url": "https://www.ufinet.com/en/dark-fiber/",
      "summary": "Wholesale dark fiber across Latin America for short-, medium- and long-distance network requirements.",
      "tags": [
        "Latin America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "Latin America",
        "coverage": "Latin American cities and national backbones",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "150,000+ km of fiber network across Latin America.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Colocation and access into the Latin American data-center ecosystem are offered.",
        "terms": null,
        "fiber_spec": "G.652.D on the backbone; mostly ADSS cable installed over power lines",
        "delivery": "External-plant maintenance and round-the-clock NOC attention; sealed IP68 junction boxes.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.ufinet.com/en/dark-fiber/",
          "title": "UFINET Dark Fiber — coverage, cable specification and maintenance",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "footprint_scope",
            "fiber_spec",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://www.ufinet.com/en/data-center/",
          "title": "UFINET data-center connectivity",
          "accessed": "2026-11-11",
          "fields": [
            "dc_scope"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "uniti",
      "name": "Uniti Wholesale",
      "url": "https://www.unitiwholesale.com/",
      "summary": "Wholesale dark fiber infrastructure serving U.S. and Canadian connectivity buyers within the combined Uniti group.",
      "tags": [
        "North America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "United States and Canada",
        "offers": "Dark fiber",
        "reach": "Metro + long haul",
        "route_miles": 240000,
        "route_km": null,
        "footprint_scope": "About 240,000 fiber route miles across 47 states for the combined Uniti group (Q3 2026 10-Q), including the Kinetic consumer network.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "May 2026 wholesale expansion added dark fiber and colocation sites; no group on-net data-center count published.",
        "terms": "Dark fiber IRUs and leases; IRUs run for a major part of the asset’s economic life (Q3 2026 10-Q)",
        "fiber_spec": null,
        "delivery": "May 2026 release documents metro dark fiber in Jackson and wider wholesale infrastructure expansions.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": "Uniti and Windstream combined on August 1, 2025; Windstream’s wholesale fiber now sells as Uniti Wholesale.",
        "ai_deals": "Q1 2026: dark fiber IRU with a large hyperscaler, worth $88.2 million in sales revenue in the first nine months of 2026 (Q3 2026 10-Q). Customer not named."
      },
      "sources": [
        {
          "url": "https://www.sec.gov/Archives/edgar/data/2020795/000162828026072168/unit-20260930.htm",
          "title": "Uniti Q3 2026 Form 10-Q (SEC EDGAR) — combined group network and IRUs",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals",
            "footprint_scope",
            "offers",
            "region",
            "route_miles",
            "terms"
          ]
        },
        {
          "url": "https://investor.uniti.com/news-releases/news-release-details/uniti-wholesale-expands-dark-fiber-and-colocation-footprint-key/",
          "title": "Uniti wholesale expansion — May 18, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "coverage",
            "reach",
            "dc_scope",
            "delivery"
          ]
        },
        {
          "url": "https://investor.uniti.com/news-releases/news-release-details/uniti-completes-merger-windstream",
          "title": "Uniti Windstream merger closes — August 1, 2025",
          "accessed": "2026-11-11",
          "fields": [
            "ownership"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "verizon-partner-solutions",
      "name": "Verizon Partner Solutions",
      "url": "https://www.verizon.com/business/verizonpartnersolutions/products/wavelength-solutions/",
      "summary": "Wholesale DWDM transport between data centers, cloud sites and cable landings, with route and protection options.",
      "tags": [
        "North America",
        "Europe",
        "Asia-Pacific"
      ],
      "fields": {
        "region": "Global",
        "coverage": "Domestic U.S.; limited EMEA and APAC geography for the standard Wave product",
        "offers": "Wavelength",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Data-center, cloud-site, private-site and cable-landing endpoints; no on-net DC count stated.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Optional fixed IXC route, contracted round-trip delay and electronic, mesh or local access protection.",
        "wavelength_offer": "1G, 10G, 100G and 400G point-to-point DWDM",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.verizon.com/business/verizonpartnersolutions/products/wavelength-solutions/",
          "title": "Verizon Partner Solutions Wavelength Services",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "offers",
            "wavelength_offer",
            "dc_scope",
            "delivery"
          ]
        },
        {
          "url": "https://www.verizon.com/business/welcome-kits/wavelength/",
          "title": "Verizon Wavelength welcome kit — product geography",
          "accessed": "2026-11-11",
          "fields": [
            "coverage"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "vocus",
      "name": "Vocus",
      "url": "https://www.vocus.com.au/enterprise/data-networks/dark-fibre",
      "summary": "Australian metro dark fibre pairs for enterprise and wholesale buyers operating their own transmission equipment.",
      "tags": [
        "Asia-Pacific",
        "Metro"
      ],
      "fields": {
        "region": "Asia-Pacific",
        "coverage": "Alice Springs; Adelaide; Brisbane; Darwin; Melbourne; Newcastle; Perth; Sydney",
        "offers": "Dark fiber",
        "reach": "Metro",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Data-center handoff at the carrier demarcation frame; customers arrange onward connectivity.",
        "terms": "Custom route pricing; setup fees and contract terms quoted per site",
        "fiber_spec": "Single-mode ITU-T G.652.D and G.657; two cores",
        "delivery": "Datasheet targets: PoP/on-net-20 sites 20 business days; on-net-40 sites 40; off-net 40–60. Diversity subject to availability.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.vocus.com.au/globalassets/shared-media/vocus-product-datasheets/vocus-datasheet-dark-fibre-12082025.pdf",
          "title": "Vocus Dark Fibre product specifications — August 2025",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "fiber_spec",
            "dc_scope",
            "delivery",
            "offers"
          ]
        },
        {
          "url": "https://www.vocus.com.au/enterprise/data-networks/dark-fibre",
          "title": "Vocus enterprise Dark Fibre — route-specific pricing",
          "accessed": "2026-11-11",
          "fields": [
            "terms"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "wanrack",
      "name": "WANRack",
      "url": "https://www.wanrack.com/",
      "summary": "Custom U.S. dark and lit fiber networks for schools, healthcare, enterprises and carriers.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Continental United States; bespoke customer networks",
        "offers": "Dark fiber",
        "reach": null,
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": "Leased strands on vendor-owned and maintained fiber; customer supplies electronics",
        "fiber_spec": null,
        "delivery": "Custom fiber infrastructure, including E-Rate dark fiber and special construction.",
        "wavelength_offer": null,
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.wanrack.com/news/3aij243b5fsb9toxikgct72kxdsaxs-zf4b2-paw8m-rkz5h-kr2xc-xhyt5-pjmpy-nsmpc",
          "title": "WANRack Lawrence school network announcement — service geography",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "offers",
            "delivery"
          ]
        },
        {
          "url": "https://www.wanrack.com/tips-guidance/0o3agcif1poytudzmo5snwhy81f4jv-ek6ad-934aj-g63zl",
          "title": "WANRack leased dark fiber service explanation",
          "accessed": "2026-11-11",
          "fields": [
            "terms"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "wiocc",
      "name": "WIOCC",
      "url": "https://www.wiocc.net/",
      "summary": "Wholesale wavelength, spectrum and capacity services linking African terrestrial networks to international subsea systems.",
      "tags": [
        "Africa",
        "Europe"
      ],
      "fields": {
        "region": "Africa",
        "coverage": "More than 550 locations in 30 African countries; global partner/network reach beyond Africa",
        "offers": "Wavelength",
        "reach": "Long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": "115,000+ km terrestrial and 200,000+ km subsea infrastructure.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": "Services connect client sites, carrier PoPs, DCs, exchanges and cable landings; OADC access included.",
        "terms": "Lease, IRU, capitalised lease and pay-as-you-grow options",
        "fiber_spec": null,
        "delivery": null,
        "wavelength_offer": "Wavelength, SDH or Ethernet handoff; capacities up to and beyond 1 Tbps",
        "recent_build": null,
        "ownership": null,
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://www.wiocc.net/global-connectivity",
          "title": "WIOCC Global Connectivity — service scope and infrastructure",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "footprint_scope",
            "dc_scope",
            "terms"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "zayo",
      "name": "Zayo",
      "url": "https://www.zayo.com/services/fiber-transport/dark-fiber/",
      "summary": "Metro and long-haul dark fiber for carriers, enterprises and data-center networks.",
      "tags": [
        "North America",
        "Metro",
        "Long haul"
      ],
      "fields": {
        "region": "North America",
        "coverage": "North American metro and long-haul dark fiber",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro + long haul",
        "route_miles": 224000,
        "route_km": null,
        "footprint_scope": "224,000 North American route miles and 32 million fiber miles (August 2026), including the acquired Crown Castle fiber.",
        "metro_count": null,
        "data_centers": null,
        "dc_scope": null,
        "terms": null,
        "fiber_spec": null,
        "delivery": "Full path transparency for physical route-diversity planning.",
        "wavelength_offer": "400G-enabled North American wavelength network",
        "recent_build": "August 2026: 15,000+ route miles of build and overbuild projects underway across North America.",
        "ownership": "Closed its purchase of Crown Castle Fiber Solutions on May 1, 2026, adding about 90,000 route miles and 40,000 on-net enterprise locations; EQT bought Crown Castle’s Small Cells unit (now Arium) separately.",
        "ai_deals": "August 2026 NVIDIA collaboration: 8,000+ miles of new long-haul fiber on six new AI-corridor routes, plus overbuilds in ten high-demand markets."
      },
      "sources": [
        {
          "url": "https://www.zayo.com/services/fiber-transport/dark-fiber/",
          "title": "Zayo Dark Fiber — metro and long-haul product",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers"
          ]
        },
        {
          "url": "https://www.zayo.com/wp-content/uploads/Metro-Dark-Fiber-Overview.pdf",
          "title": "Zayo Metro Dark Fiber — path transparency",
          "accessed": "2026-11-11",
          "fields": [
            "delivery"
          ]
        },
        {
          "url": "https://www.zayo.com/newsroom/strengthening-the-digital-infrastructure-backbone-for-ai-zayo-completes-acquisition-of-crown-castles-fiber-solutions-business/",
          "title": "Zayo completes Crown Castle Fiber Solutions acquisition — May 1, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "ownership",
            "route_miles",
            "footprint_scope"
          ]
        },
        {
          "url": "https://www.zayo.com/newsroom/zayo-teams-with-nvidia-to-scale-critical-network-capacity-for-ai-factories/",
          "title": "Zayo NVIDIA AI network collaboration — August 6, 2026",
          "accessed": "2026-11-11",
          "fields": [
            "ai_deals",
            "footprint_scope",
            "recent_build"
          ]
        },
        {
          "url": "https://www.zayo.com/services/fiber-transport/wavelengths/",
          "title": "Zayo Wavelengths — 400G-enabled network",
          "accessed": "2026-11-11",
          "fields": [
            "offers",
            "wavelength_offer"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    },
    {
      "id": "ziply-fiber",
      "name": "Ziply Fiber Wholesale",
      "url": "https://ziplyfiber.com/wholesale/products/dark-fiber",
      "summary": "Dark fiber and managed wavelengths linking Pacific Northwest metro networks with intercity U.S. backbone routes.",
      "tags": [
        "North America"
      ],
      "fields": {
        "region": "North America",
        "coverage": "Seattle; Portland; Hillsboro; Boise; Spokane; long-haul to Salt Lake City, Denver, Minneapolis, Chicago and Ashburn",
        "offers": "Dark fiber + wavelength",
        "reach": "Metro + long haul",
        "route_miles": null,
        "route_km": null,
        "footprint_scope": null,
        "metro_count": null,
        "data_centers": 70,
        "dc_scope": "70+ on-net data centers across the wholesale footprint.",
        "terms": null,
        "fiber_spec": null,
        "delivery": "Customer runs optical equipment on dark fiber; route KMZ available on request.",
        "wavelength_offer": "100G and 400G managed transport; managed spectrum also offered",
        "recent_build": null,
        "ownership": "BCE (Bell Canada) completed its acquisition of Ziply Fiber on August 1, 2025, for C$5.0 billion in cash.",
        "ai_deals": null
      },
      "sources": [
        {
          "url": "https://ziplyfiber.com/wholesale/products/dark-fiber",
          "title": "Ziply wholesale Dark Fiber — route and service scope",
          "accessed": "2026-11-11",
          "fields": [
            "region",
            "coverage",
            "reach",
            "offers",
            "wavelength_offer",
            "data_centers",
            "dc_scope",
            "delivery"
          ]
        },
        {
          "url": "https://www.sec.gov/Archives/edgar/data/718940/000119312525171297/d812800dex991.htm",
          "title": "BCE completes acquisition of Ziply Fiber — August 1, 2025 (SEC Form 6-K exhibit)",
          "accessed": "2026-11-11",
          "fields": [
            "ownership"
          ]
        }
      ],
      "verifiedAt": "2026-11-11",
      "featured": false
    }
  ]
}
