Lit fiber leased to your team: your own DWDM, routing, and encryption. Carrier-grade route engineering since 1995, route transparency before you sign.
Dark Fiber · You own what’s lit · route engineering since 1995

Unlit fiber strands.
Leased to your network team.

AI training clusters, distributed compute, edge inference, data sovereignty, every serious enterprise workload of 2026 depends on a physical layer that shared circuits can’t reliably deliver. Three years ago, dark fiber was a niche product. Today, it’s foundational. CyberNet leases the physical strands and operates the route as physical-layer custodian. You light it, you route it, you encrypt it, on terms you control end to end.

What It Is

The closest thing to owning the fiber
without owning the trench.

A traditional carrier circuit gives you a managed connection, we light, we choose protocols, we set capacity. Dark fiber inverts that relationship. We lease you the physical strands, you provide the optics on both ends. Every wavelength, every protocol, every byte of capacity is yours to control.

Datacenter interconnect

Connect two or more datacenters with dedicated wavelengths at any capacity your optics can drive. Run your own DWDM, your own routing, your own encryption, without the carrier in the middle.

Hyperscale & research

For workloads where shared infrastructure doesn’t meet the latency, throughput, or sovereignty requirements. AI training clusters, scientific computing, financial trading networks, content distribution backbones.

Carrier & wholesale transport

For regional carriers, MSPs, and large enterprises building their own networks. Lease the physical layer from CyberNet and operate the rest yourself, with a supplier that won’t compete with your customer.

Common Configurations

Three configurations,
to help you locate your own.

These aren’t pricing tiers. They’re examples of typical dark fiber configurations at different scales, so you can see roughly where your build might land. Yours will be engineered to your specific endpoints, capacity, redundancy, and SLA.

01 / Metro DCI

Metro Datacenter Interconnect

Two datacenters in the same metro region. Single pair of strands, 5–25 miles apart, sub-5ms latency, redundant building entrance at each end. The configuration we deploy most often for mid-size enterprises consolidating workloads.

For mid-size enterprises consolidating workloads across owned facilities.
02 / Multi-Site Campus

Multi-Site Campus Network

Research institution, hospital network, or university with 4–12 buildings. Multiple strand pairs in a star or ring topology, geo-diverse routing between key buildings, 100G optics per pair.

For healthcare networks, R1 universities, campus deployments, government facilities.
03 / Long-Haul Transport

Long-Haul Transport

Carrier-grade transport between regions for a regional carrier, MSP, or hyperscale customer. Long-haul routes 100+ miles, regenerated at engineered intervals, DWDM-ready, geo-diverse and conduit-diverse paths.

For regional carriers, wholesale MSPs, and hyperscale customers.
Why CyberNet

Carrier-grade routing.
Without the carrier in your traffic.

Most providers either won’t sell dark fiber, or sell it with contractual fine print that limits what you can build on top of it. CyberNet has been engineering routes since 1995. We design the path, maintain the physical layer, and leave everything you light to you.

Route transparency before you sign

Before you sign, you see the route map, conduit paths, splice points, regen sites, geo-diversity proof. After you sign, you see it in Mission Control with live status and dispatch tracking for any work happening on your strands.

The route engineer is on staff

We’ve been engineering carrier-grade fiber routes across the U.S. since 1995. The same engineers who architected our network are the ones who’ll engineer your route. Not an outsourced design partner.

Mission Control visibility

Once your dark fiber is in service, Mission Control gives you the same visibility into your strands that we have internally. NikolAI monitors the physical layer for anomalies and surfaces them before they become outages.

Common questions

Common questions

What is dark fiber, and how is it different from lit service?

Dark fiber is unlit strand leased to your network team. You supply the optics, DWDM, routing and encryption; CyberNet engineers and maintains the physical path. With lit service the carrier owns the electronics and sells you capacity on them.

Can I see the route before I sign?

Yes. You see the route map, conduit paths, splice points, regen sites and geo-diversity proof before signing. After signing, the same route is visible in Mission Control with live status and dispatch tracking for any work on your strands.

What can I run over CyberNet dark fiber?

Your own protocols and wavelengths, up to 100G+ per wave. Common uses are datacenter interconnect, hyperscale and research transport, and carrier wholesale transport.

How is CyberNet different from other carriers?

CyberNet is an engineering-led, licensed CLEC since 1995 that owns its network, 150,000+ on-net buildings and 700+ cell towers. You work directly with the engineers who design and run your service, with no level-1 layer between you and the person who can fix the problem.

What uptime does CyberNet commit to?

A 99.999% core-uptime SLA, contractually penalized when missed.

How quickly will I hear back?

Within one business day.

How do I check coverage at my address?

Submit your address through the technology configurator and we’ll check coverage at each site.

What is Mission Control?

Mission Control is the operations platform every CyberNet customer lives inside, five workspaces: Orders, Marketplace, Ops Center, Billing, and Helpdesk. See Mission Control.

Dark Fiber Build

Ready to lease the physical layer?
Start with the route map.

Tell us where your endpoints are and what you’re lighting between them, AI training, DCI replication, financial trading, content distribution, and we’ll come back with an engineered route. The path, the diversity proof, the optics options, the SLA. Response within one business day.