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The tables below list the most widely available residential internet providers in California, split out by technology. Availability captures the percent of the population covered, not the percent of land area covered in California.
| Provider | Availability |
|---|---|
| AT&T | 55% |
| Frontier | 24% |
| Sonic.net | 5% |
| Astound | 2% |
| Cox | 2% |
| Fidium Fiber | 2% |
| BAI Connect | 2% |
| Provider | Availability |
|---|---|
| Spectrum | 54% |
| Xfinity | 32% |
| Cox | 8% |
| Astound | 3% |
| Provider | Availability |
|---|---|
| AT&T | 13% |
| Frontier | 2% |
| Consolidated Communications | 2% |
| Sail Internet | 1% |
| Provider | Availability |
|---|---|
| T-Mobile | 98% |
| Verizon | 95% |
| AT&T | 24% |
| Etheric Networks | 14% |
| unWired | 14% |
| Starry | 10% |
| Cal.net | 10% |
| Provider | Availability |
|---|---|
| Starlink | 100% |
| Provider | Availability |
|---|---|
| Viasat | 100% |
| HughesNet | 92% |
Availability metrics are likely overestimates and don't account for residents of California living outside of census places. Up to 7 providers are listed for each technology. Providers with less than 1% availability in California are omitted.
Broadband Map's internet availability listings rely heavily on the November 2025 release from the FCC's Broadband Data Collection program (representing ISPs' availability as of June 2025).
The map shows internet provider availability across California. Select a hexagon to find what internet providers are available at a specific location. Use the search box to find an address or city within California.