Overview Benefits Features Resources

DARK FIBER

Take control of your bandwidth

Lumen Dark Fiber solutions give you all the benefits of network ownership without having to construct the network yourself.

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Engineered to accelerate AI at scale

AI-driven enterprises need total control, scale and ultra-low latency. Lumen® Dark Fiber delivers full ownership and design flexibility on the world’s most peered IP network—backed by extensive routes, secure colocation and a future-ready optical backbone. Read the eBook to see why Frost & Sullivan calls it the foundation for smart enterprise networks.

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25K+

route miles with low-loss next gen fiber

~163,000

on-net buildings

2,200+

On-net third party data centers

Diverse system of custom and predefined routes

Support high-capacity growth on the largest ultra-low-loss intercity fiber network in North America, with 530+ sites providing up to 400G connectivity.

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A map of the United States showing a dense network of orange and dark gray lines connecting dozens of orange dot locations across the country, with heavier concentration in the eastern half and along major corridors, on a light gray background.

Scalable and reliable cloud connectivity

See how AWS designs and operates reliable, scalable cloud and event networks that power global experiences where downtime isn’t an option.

Dark Fiber

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Expansive North America metro and intercity fiber route miles

Low Loss Next-Gen Fiber

Extensive network reach, capacity and diversity

Running line colocation and power

World-class operations and maintenance

Network connectivity options

Dedicated NOC for managed dedicated fiber customers

Uptime SLAs

Fast turnaround on logical moves, upgrades and new meshing

Detailed, street-level dark fiber designs

Custom control
Manage scalability, capacity and network management, technology evolution, reliability and network uptime
Optional add‑on: Managed optical fiber network
Dedicated dark fiber Choice of hardware purchased directly from vendor, VAR or Lumen Professional services
Optional add‑on: Professional services
Outside plant construction Network architecture, design and engineering Equipment selection and acquisition Network deployment and implementation Network monitoring and management Field tech services

Resources

A pale gray world map showing a global network of thin interconnecting lines, with a dense cluster of routes across North America and links extending across the oceans to other continents.

Featured

Network map

Explore our global network, including fiber, on‑net, data center and edge locations.

View map

A person with a beard wearing glasses and a light blue button-up shirt stands beside an open server cabinet in a data center, holding a tablet and looking up at the equipment with a focused expression.

Data sheet

DARK FIBER

Take control of your bandwidth

Engineered to accelerate AI at scale

Diverse system of custom and predefined routes

Scalable and reliable cloud connectivity

Features and specs

Dark Fiber

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Dark Fiber

Expansive North America metro and intercity fiber route miles

Low Loss Next-Gen Fiber

Extensive network reach, capacity and diversity

Running line colocation and power

World-class operations and maintenance

Network connectivity options

Dedicated NOC for managed dedicated fiber customers

Uptime SLAs

Fast turnaround on logical moves, upgrades and new meshing

Detailed, street-level dark fiber designs

Custom control

Optional add‑on: Managed optical fiber network

Optional add‑on: Professional services

Resources

Network map

Lumen Dark Fiber

Building an AI-ready infrastructure with optical networking services

The foundation of AI-ready networks: Lumen Dark Fiber & Network Colocation

Wavelength Solutions

Colocation and Data Center Services

Ethernet Services