Engineered Dark Fiber for carriers & ISPs.
Purpose-built for wholesale scale, Fidium’s Dark Fiber delivers high-capacity performance.
Purpose-built fiber for backbone, edge, and core.
Fidium’s Dark Fiber solution offer unlit, dedicated fiber pairs designed for complete infrastructure control. Whether you’re extending your backbone, enabling metro edge aggregation, or provisioning redundant routes between data centers, our network delivers unmatched ownership, performance, and flexibility.
Control the routing, manage your optics, and scale bandwidth as your needs evolve—ideal for carriers, cloud providers, hyperscalers, and ISPs seeking long-term Dark Fiber infrastructure investments.
Design. Control. Scale.
Unlimited Bandwidth
No limits—scale as fast as your optics allow.
Infrastructure Ownership
Full control of your routing, gear, and architecture.
Strategic Reach
Connect key metros, edge sites, and long-haul routes.
Why choose Dark Fiber from Fidium?
Fiber infrastructure, built for scale and performance.
Unlimitedcapacity
Scale is driven by your deployed optics, not the Dark Fiber provider.
67,000+fiber route miles
Diverse long-haul and metro routes across key markets.
250,000+on-net and near-net sites
Dense fiber access for scalable last-mile or mid-mile builds.
Future-proofinfrastructure
Purpose-built Dark Fiber infrastructure that meets your evolving traffic demands.
Who uses Dark Fiber?
Trusted by infrastructure-first organizations seeking a proven Dark Fiber provider with demanding performance needs.
Data Center Operators
Enable high-throughput interconnects and low-latency east-west traffic.
Cloud & Hyperscale Providers
Deploy regional presence with scalable, diverse fiber routes.
ISPs & Carriers
Aggregate traffic or extend footprint with IRU and lease-based capacity.
Explore more transport options.
Build secure, scalable infrastructure by combining Dark Fiber with Wavelengths and Data Center connectivity—complete transport connectivity solutions for modern networks.
Have questions? We’ve got answers.
What makes Fidium a trusted Dark Fiber provider?
Fidium combines decades of Dark Fiber infrastructure expertise with carrier-grade network quality and personalized wholesale support.
Can I scale my bandwidth needs over time?
Yes. You define the optics – scale as needed.
Is Dark Fiber secure?
Maximum security—no overlay protocols, no shared circuits, no third-party exposure.
What’s the typical use case for Dark Fiber?
Data center interconnects, hyperscale backbones, municipal/private WANs, and custom carrier routes.
Who should use Dark Fiber?
Network architects, ISPs, carriers, and cloud providers are looking for infrastructure control and custom scalability.
Getting started with wholesale Dark Fiber.
Streamlined infrastructure delivery—built to your specs, ready to scale.
Consult
We map to your PoPs, latency thresholds, and equipment specs.
Design
Custom fiber routes and pair availability based on strategic needs.
Deploy
Light your fiber with DWDM or point-to-point optics on your terms.