Providers
158
Distinct ISPs filing in CA
FCC Form 477 internet service provider coverage and transport-technology mix for California (CA). All figures are programmatic rollups of public deployment filings.
Data updated June 2026
Providers
158
Distinct ISPs filing in CA
Average max download
145 Mbps
Mean of advertised speeds
Fiber coverage
3.3%
Share of FCC filings
below the ~4.3% national fiber share
Total deployment records
4,251,743
Across 158 providers
California at a glance
In California, 49.2% of Form 477 records are satellite and 3.3% are fiber, a satellite-led mix across 4,251,743 deployment records.
Shares are the percentage of this state's Form 477 deployment records using each technology category.
California has 158 distinct broadband providers on file with the FCC and 4,251,743 total deployment records across all technology types. The state's average maximum advertised download speed sits at 144.5 Mbps - at or above the federal 100/20 Mbps broadband benchmark. That headline figure is the mean across every filing, so it weights provider-by-census-block records equally rather than weighting by population, which means rural filings pull the average as much as urban ones.
The technology mix in California is led by satellite, with fiber accounting for 3.3% of filings, cable 9.9%, and DSL 22.8%. Fiber share is the single best indicator of future-proofed infrastructure because fiber supports symmetric multi-gigabit speeds and scales without rewiring; cable share signals incumbent coverage in suburbs and cities; DSL share typically correlates with legacy copper footprints in smaller towns and rural pockets where no newer technology has arrived yet.
AT&T Inc. files the most deployment records in California at 745,276, with ViaSat, Inc. second at 710,145. The dominant technology line by filing count is Satellite, which alone accounts for 2,093,119 records. Remember that Form 477 counts provider filings, not homes actually connected, so a block with five providers shows up as five records, useful for measuring competition and coverage breadth, but not a direct proxy for subscriber counts or real-world speeds at any specific address.
FCC Form 477 fixed broadband deployment data (June 2020 status)
| Technology | Records |
|---|---|
| Satellite | 2,093,119 |
| Terrestrial Fixed Wireless | 627,511 |
| Cable | 422,718 |
| ADSL2+ | 383,081 |
| DSL | 369,936 |
| VDSL | 202,304 |
| Fiber | 138,663 |
| Other Copper | 13,961 |
| Symmetric DSL | 442 |
| Other | 8 |
The providers carrying the largest share of California's Form 477 deployment records. AT&T Inc. leads with 745,276 records.
FCC Form 477 fixed broadband deployment data (June 2020 status)
Showing top 50 of 158 providers.
Disclaimer: Data from FCC Form 477. For informational purposes only. Coverage percentages are based on provider filings and may overstate actual availability at specific addresses. Speed figures represent maximum advertised speeds, not guaranteed performance. Always verify availability directly with providers.
According to FCC Form 477 data, 158 broadband providers have filed deployment records in California.
The average maximum advertised download speed across all providers in California is 144.5 Mbps, based on FCC deployment filings.
California has broadband coverage through multiple technologies including fiber (3.3%), cable (9.9%), and DSL (22.8%).
Read our methodology - how this data is sourced, computed, and verified.
State-level figures reflect reported provider footprint, not a real-time or address-level availability check.
PlainBroadband is rendered directly from the FCC Form 477 fixed broadband deployment dataset (June 2020 status, the final Form 477 release), no number is typed in by an editor. This state's coverage figures are computed directly from the underlying FCC Form 477 census-block records, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2020.