2026 FCC data 158 providers 145 Mbps avg DSL-led mix

California Broadband Data

FCC Form 477 internet service provider coverage and transport-technology mix for California (CA). All figures are programmatic rollups of public deployment filings.

Broadband technology mix Stacked horizontal bar showing the percentage share of fiber, cable, DSL, fixed-wireless, and satellite broadband filings. Broadband technology mix FCC Form 477 deployment filings · share of total records 9.9% 22.5% 52.3% 12.0% Fiber 3.30% Cable 9.90% DSL 22.50% Fixed-Wireless 52.30% Satellite 12.00% Five-segment transport-technology composition · normalised to 100%
California transport-technology mix (FCC Form 477 share of filings)

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 national average

Total deployment records

4,251,743

Across 158 providers

Transport-technology share

Fiber 3.3%

Future-proofed transport (symmetric multi-Gbps capable)

Cable 9.9%

Coaxial DOCSIS 3.1/4.0 footprint

DSL 22.5%

Legacy copper (ADSL/VDSL2/G.fast)

Federal broadband speed-tier distribution Horizontal bar showing the share of 4,251,743 FCC Form 477 deployment filings across the five federal speed-threshold bands. <3/0.768 18.0% 3/0.768 → 25/3 42.0% 25/3 → 100/20 25.0% 100/20 → 1G 10.0% ≥1G/100 Sub-broadband 212,587 Legacy 765,314 Standard 1,785,732 Giga-capable 1,062,936 Gigabit+ 425,174 4,251,743 filings · 5 federal speed-threshold bands
California federal speed-tier composition (sub-3/0.768 → ≥1G/100, FCC Form 477)

What the FCC Data Shows for California

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 DSL, with fiber accounting for 3.3% of filings, cable 9.9%, and DSL 22.5%. 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 Fixed Wireless Licensed, 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.

Technology Breakdown

Technology Records
Fixed Wireless Licensed 2,093,119
Fixed Wireless Unlicensed 627,511
Cable 399,994
ADSL 383,081
DSL 369,936
VDSL 202,304
Fiber 138,663
Cable (DOCSIS 3.1) 21,374
Technology 30 13,961
Cable (DOCSIS 3.0) 1,083
Cable (DOCSIS 1-2) 442
Technology 40 267
Other 8

Providers in California

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.

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Frequently Asked Questions

How many broadband providers serve California?

According to FCC Form 477 data, 158 broadband providers have filed deployment records in California.

What is the average download speed in California?

The average maximum advertised download speed across all providers in California is 144.5 Mbps, based on FCC deployment filings.

What broadband technologies are available in California?

California has broadband coverage through multiple technologies including fiber (3.3%), cable (9.9%), and DSL (22.5%).

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBroadband Editorial