Dark fiber is a different transaction from buying a service. You are leasing the glass and lighting it yourself, which means you choose the optics, set the capacity, decide the protocol, and upgrade on your own schedule without renegotiating anything. In Fresno that appeals mainly to organizations that already operate a network: carriers, wireless providers, data-centre operators, large campuses, and public agencies with their own engineering staff.
The reason it works here is ownership. This is a privately owned network rather than resold capacity, so a dark fiber conversation is about which strands exist on a specific route and what terms apply to them — not about whether an upstream supplier will permit the arrangement.
When your capacity requirement is large enough that lit service pricing scales badly, when you need to run a protocol or an encryption scheme that a managed service will not carry, or when you need the certainty of controlling your own upgrade path over ten or twenty years. Universities, health systems with their own network teams, wireless carriers backhauling sites, and agencies building regional networks are the usual profiles.
If you do not want to own optics, monitoring, and fault isolation, dark fiber transfers work to you that a lit service absorbs. A single office does not need it. The honest comparison is total cost of ownership including the equipment and the staff, not a per-mile lease figure against a monthly circuit price — and we will tell you when a wavelength or dedicated circuit is the better buy.
Strand availability is route-specific, not market-wide. Tell us the two endpoints and we will confirm what exists on that path, what the term structure looks like, and whether an alternative route makes more sense. We do not publish route maps or strand counts, because that is infrastructure detail that should not be public.
Full service detail lives on the Dark Fiber page, and the wider market context is on the Fresno location page.
Optical fiber that has been installed but not lit by the owner. You lease the strands and attach your own equipment at each end, so the capacity is whatever your optics support rather than whatever a provider sells you. Nothing about the fiber changes when you upgrade — you change the equipment.
No, and any provider who says otherwise is guessing. Availability depends on the specific route between your endpoints. Give us both locations and we will confirm what exists and what the alternatives are.
Typically as a term lease or an IRU — an indefeasible right of use over a long period — priced against route distance, strand count, and term rather than against bandwidth, since bandwidth is your decision. Structure and terms are quoted per route.
A wavelength gives you a dedicated high-capacity channel without owning the optical layer; dark fiber gives you the fiber itself and all the responsibility that comes with it. If you want control and have the engineering capacity, dark fiber. If you want the capacity without the equipment, a wavelength. We compare both in detail in our dark fiber versus lit fiber guide.
Send us the address and a bandwidth target. A California-based engineer confirms what can be delivered there, what it involves, and how long it takes.
Send the Fresno address and what the connection needs to carry. An engineer confirms whether it can be served, what the build involves, and how long it takes.
Service availability depends on location, network proximity, capacity, and engineering review. Share an address and we will confirm what can be delivered there.