Internet providers in California
UPDATED JULY 2026 · BUILT FROM FCC BROADBAND DATA
“Every option at your address — one search, one call.”California has 89 internet providers reporting residential service across 1,787 zip codes. Fiber now reaches 89% of California zips, cable 93%, and 5G home internet 100% — and because availability changes street by street, the provider list two blocks over can look completely different from yours.
Fiber in California is led by AT&T, reported in 1,031 zips, with Spectrum the next-widest fiber network. On cable, Spectrum has the broadest footprint at 822 zips. T-Mobile carries most of the state’s 5G home internet coverage. Roughly 97% of California zips (1,727) have two or more of these competing at the same address — that overlap is where the real pricing leverage lives, and it is exactly what we help you use on the phone.
Check your exact spot right here, or skip the typing and call (855) 240-4535 — a real person reads out every provider at your address and can have you ordered in about five minutes.
Top fiber providers in California
| Provider | Coverage |
|---|---|
| AT&T | 1,031 zips |
| Spectrum | 690 zips |
| Frontier | 580 zips |
| Astound Broadband | 212 zips |
| Xfinity | 165 zips |
Top cable providers in California
| Provider | Coverage |
|---|---|
| Spectrum | 822 zips |
| Xfinity | 672 zips |
| Cox Communications | 152 zips |
| Astound Broadband | 100 zips |
| Optimum | 71 zips |
Top 5G home internet providers in California
| Provider | Coverage |
|---|---|
| T-Mobile | 1,775 zips |
| AT&T | 1,710 zips |
| Verizon | 1,693 zips |
| GeoLinks | 1,153 zips |
| DigitalPath Inc | 215 zips |
Rural and everywhere-else options
Satellite service — Starlink, Viasat, and Hughesnet — covers virtually every California address, which matters in the 11% of zips fiber hasn't reached yet. On a call we'll tell you honestly when satellite is the right answer and when a 5G or wired option will serve you better for less.
California internet FAQ
Who is the largest internet provider in California?
By zip-code coverage in FCC data, T-Mobile reports service in 1,775 of California's 1,787 covered zips. Coverage is street-by-street, so the best provider for you depends on your exact address — one call to (855) 240-4535 checks every option at once.
Does California have fiber internet?
Yes — fiber is reported in 89% of California zip codes, with top advertised speeds up to 10 Gbps. The biggest fiber network belongs to AT&T.
Is 5G home internet available in California?
5G home internet is reported in 100% of California zips, led by T-Mobile. It installs in minutes with no technician and is usually contract-free — a strong option where cable choices are limited.
What's the fastest way to compare internet providers in California?
Type your address into the search box on this page for an instant zip-level picture, then call (855) 240-4535 — a real person confirms exactly which providers and prices are live at your address and can place the order, typically in about five minutes.
Nearby states: Oregon · Nevada · Arizona · all states
Keep reading: what internet costs in 2026 · fiber vs cable · 5G home internet review