Where the Vast Networks fiber network reaches across California — owned plant, an 18-county middle-mile backbone, and the markets served from it. Use it to orient; use an engineering review to get an answer for your address.
Pan and zoom to see the regions the network reaches. Coverage is shown approximately, at a regional scale — the map is an orientation tool, not a serviceability lookup.
The interactive map is being prepared
It will appear here once published. In the meantime the markets below list where the network reaches, and an engineer can confirm what is deliverable at a specific address today.
Coverage shown is approximate and provided for orientation. It does not represent route paths or confirm service at a specific address.
This map shows the regions the Vast Networks fiber network reaches across California — where there is owned plant in the ground, where the middle-mile backbone runs, and which markets are served from it. It is an orientation tool. It is the fastest way to answer "do you operate anywhere near me", and it is not, and cannot be, an answer to "can you serve my building".
Those are two different questions, and most of what follows is about the distance between them. A network can be present throughout a city and still need a several-hundred-foot build to reach one particular suite; a site well outside any shaded area can turn out to be straightforward because a route already passes nearby. The map narrows the question. An engineer answers it.
Approximate regional presence and the markets served from the network — the areas where Vast owns and operates plant, and the corridors the middle-mile backbone follows at a regional scale. Read it as reach, at the resolution of a county or a city, and nothing finer than that.
No route centre-lines, splice enclosures, handhole positions, regeneration sites, or facility coordinates. That level of detail is infrastructure security information and it is not published on this site at any zoom level. If you need route-level information for a diversity assessment, that is a conversation under a confidentiality agreement.
Presence means the network reaches an area. Availability means fiber can be delivered to your specific address, which depends on distance to usable plant, the physical route in, construction method, permitting, and whether the property will grant access. A shaded region on a map answers the first and says nothing about the second.
Two buildings on the same block can have completely different answers, because one sits across a road that needs a bore and the other does not. That last stretch is where cost and schedule are actually determined, and it is invisible at map scale — which is exactly why we do not put a green tick on an address and call it a quote.
The published market list is where there is enough local substance to write a page about. Regional transport runs further than that, and the network was built specifically to reach agricultural, industrial, and municipal sites that no consumer carrier would build to. Not seeing your town is a reason to ask, not a reason to stop.
Send the address and what the connection has to carry. A California-based engineer checks it against the network and tells you what is deliverable, what construction is involved, and what the timeline looks like — including, when it is the case, that a build there is not practical.
Regional presence across California, with the deepest concentration in the Central Valley. Presence is not the same as availability at a given address — each market page explains what that means locally.
Operating outside these markets? The network extends beyond the cities listed here, and regional transport reaches further still. Ask us about your location.
Presence is a region. Availability is a building.
Plenty of carriers will take an address and return an instant yes. It is a good experience and frequently a wrong answer, because the things that decide whether fiber can reach a building — how far it sits from usable plant, what the route in crosses, whether the work needs a bore or a trench or an aerial run, which permits that triggers, and whether the property owner will grant access — are not in any database that answers in 200 milliseconds.
So this map stops where its honesty stops. It will show you that the network runs through your region, which is genuinely useful and is the point of publishing it. It will not claim to know what happens in the last few hundred feet to your door. That part gets checked by a person who can look at the plant records, and you get told what is actually involved — including when the answer is that a build there does not make sense.
Service availability depends on location, network proximity, capacity, and engineering review. Share an address and we will confirm what can be delivered there.
What can be delivered where the map shows reach.
No. The map shows where the network is present at a regional scale. Availability at a specific building depends on the distance from existing plant, the route in, construction requirements, permitting, and property access — none of which are visible at map scale. Presence tells you it is worth asking; an engineering review tells you the answer.
Detailed route geometry, splice locations, handhole positions, and facility coordinates make critical infrastructure easier to damage, and publishing them would be irresponsible regardless of the marketing value. The map is built to convey reach without exposing plant, and no route-level detail is published on this site.
Often, yes. The map and the market list reflect where we have enough local detail to publish, while the regional backbone and transport reach further. Rural, agricultural, and industrial sites outside any listed market are a large part of what this network was built for — send the address and we will tell you what reaching it involves.
It is approximate by design. Boundaries are drawn to communicate regional reach, not to be measured against a parcel line, and they are not a serviceability lookup. Where the map and an engineering review disagree about your address, the review is the authoritative answer — that is what it exists for.
Not from what is published here. Physical diversity depends on whether a second path shares a conduit, a bridge, or a right of way with the first, and establishing that requires route-level information this map intentionally omits. We will work through it with you directly, under a confidentiality agreement, as part of designing the circuit.
The map is a picture of where the network reaches. The availability check is a request that puts your address in front of an engineer, who checks it against the network and comes back with what can be delivered, what it involves, and how long it takes. The first is orientation; the second is an answer you can plan around.
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.
The map narrows the question to a region. This answers it for a building — send the address and the requirement, and an engineer comes back with what is deliverable there.
Service availability depends on location, network proximity, capacity, and engineering review. Share an address and we will confirm what can be delivered there.