6.5.2Segment

Data Center Interconnect & Dark Fiber

Dark fiber owners, interconnection exchange operators, and metro fiber network providers supplying wholesale connectivity.

4
Verticals

Overview

Data Center Interconnect & Dark Fiber covers the high-capacity fiber connections between data centers and the leasing of unlit ("dark") fiber that customers light with their own equipment. It is the connectivity fabric linking data-center campuses, cloud regions, and network hubs, served by fiber operators and dark-fiber specialists (Zayo, Lumen, and metro-fiber providers).

Demand is propelled by cloud computing, the AI-driven data-center boom, and the need for massive, low-latency bandwidth between facilities, with dark fiber prized by hyperscalers and large enterprises wanting dedicated capacity and control. It is consolidating around scaled fiber platforms and a high-growth, infrastructure-investment-active segment tightly coupled to the data-center build-out.

Market snapshot

FragmentationConsolidating

Data-center interconnect and dark fiber sit within wired telecommunications/fiber (NAICS 517311) and are not separately disclosed by the Census Bureau, so the segment is not separately sized here.

Business model & economics

Revenue model
Dark-fiber leases (IRUs) and interconnect bandwidth
Recurring revenue
High — long-term IRU and bandwidth contracts
EBITDA margin
Strong — recurring fiber economics
Capex intensity
High
  • Connectivity fabric between data centers and cloud regions.
  • Cloud and AI data-center boom drive bandwidth demand.
  • Dark fiber prized by hyperscalers for dedicated capacity.

M&A deal context

High deal activity

Who’s acquiring

Fiber & dark-fiber operatorsInfrastructure funds & investorsHyperscalers & digital-infrastructure platforms

What’s driving deals

  • Data-center and AI bandwidth demand.
  • Consolidation around scaled fiber platforms.
  • Hyperscaler dedicated-capacity needs.

Verticals in this segment

  • 6.5.2.1Dark Fiber Network Operators

    Companies owning and leasing unlit fiber optic cable networks.

  • 6.5.2.2Fiber Route Owners & Lessors

    Companies with long-haul fiber routes licensing capacity.

  • 6.5.2.3Interconnection & Exchange Points

    Neutral interconnection facilities connecting carrier networks.

  • 6.5.2.4Metro Fiber Networks

    Metropolitan area fiber network operators providing local connectivity.

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