Dark Fiber solution provides physical, unlit fiber optic strands that allow for total control over network architecture, hardware, and protocols. By leasing the raw infrastructure rather than a managed service, organizations can "light" the fiber with their own equipment to meet specific capacity and latency requirements.

Core Features

Unlimited Scalability: Bandwidth is restricted only by the optical equipment you choose to install. Upgrading capacity (e.g., moving from 100G to 400G or 800G) requires a hardware change at the endpoints rather than a new service order from the carrier.
Hyper-Secure Privacy: Since the fiber is a dedicated physical path (not a shared logical circuit), it offers the highest level of security. Customers have complete visibility into the data traversing the network.
Mission-Critical Reliability: Zayo provides a 99.999% uptime SLA. Their long-haul routes are approximately 90% underground, reducing the risk of physical damage and environmental interference.

Network Scope

Metro Dark Fiber: Dense, high-count fiber networks within major metropolitan areas, connecting office buildings and local data centers.
Long-Haul Dark Fiber: Unique, diverse routes connecting major markets. These routes include In-Line Amplification (ILA) sites and often provide direct subsea cable integration for international traffic.
Global Reach: The network currently spans over 19 million fiber miles worldwide, connecting more than 400 markets and 1,500+ data centers.