Internet in San Francisco at a glance
San Francisco, California has 463,554 residential broadband-serviceable locations. Fiber reaches 44.0% of them at 100/20 Mbps or faster; cable reaches 97.4%. Gigabit service is available to 73.6% across all technologies.
- San Francisco has 463,554 residential broadband-serviceable locations, per FCC filings as of December 31, 2025.
- It ranks #22 of 29 markets FiberNear tracks for fiber availability, against a median of 64.2%.
- Cable reaches 53.5% more of San Francisco than fiber does — the gap most people are surprised by.
- Over fiber specifically, gigabit reaches 43.8%; across all technologies it reaches 73.6%.
- FiberNear tracks 1 fiber network operating in San Francisco, alongside 2 major non-fiber providers, and coverage varies street by street — a citywide figure will not tell you what reaches a specific address.
Source: FCC Broadband Data Collection, residential fixed broadband, as of December 31, 2025. Figures are advertised availability self-reported by providers, not measured speeds.
Availability figures: FCC Broadband Data Collection, as of December 31, 2025. Page updated August 15, 2026.
San Francisco, California is a dense West Coast market where fixed wireless reaches almost every address and fiber fewer than half of them. Because fiber is built out street by street, the useful question isn't "who offers service in San Francisco?" — it's "who can actually install it at my address?" That is what FiberNear checks for you.
What's actually available in San Francisco
Each figure is the share of San Francisco's residential broadband-serviceable locations where at least one provider reports service at that speed or better. Read down a column to compare technologies at the same speed tier.
| Technology | 25/3 Mbps | 100/20 Mbps | 250/25 Mbps | 1 Gbps |
|---|---|---|---|---|
| Fiber to the home | 44.0% | 44.0% | 44.0% | 43.8% |
| Cable | 97.4% | 97.4% | 97.4% | 33.5% |
| Fixed wireless | 99.9% | 99.5% | 98.8% | 21.1% |
| DSL / copper | 23.2% | 11.0% | 1.0% | 1.0% |
| Any technology | 100.0% | 100.0% | 100.0% | 73.6% |
Source: FCC Broadband Data Collection, residential fixed broadband, as of December 31, 2025. Figures are advertised availability self-reported by providers, not measured speeds.
How San Francisco compares
Across the 29 metros FiberNear tracks, the median fiber availability is 64.2% at 100/20 Mbps. San Francisco sits at 44.0%, which ranks #22 of 29 — San Francisco has thinner fiber coverage than a typical market in this set, which makes checking your specific address more worthwhile, not less.
Internet providers in San Francisco
These are the major networks active in and around San Francisco — fiber first, plus the cable and wireless operators that reach a large share of the market. Each card names the connection type, because that is the difference that actually matters. Coverage varies by neighborhood and address, so use the checker to confirm which of them reach your home.
Which providers operate in each market is FiberNear's own editorial assessment, not an FCC figure. The FCC's public filings report how much fiber reaches a city, but not which brand it belongs to.
AT&T Fiber
100% fiber-optic; plans commonly range from 300 Mbps up to 5 Gbps where available. Known for symmetrical speeds and no annual contract on most fiber plans.
Xfinity
Hybrid fiber-coaxial cable, with fiber to a limited set of addresses; plans commonly range from 150 Mbps up to 2 Gbps where available. Known for the widest gigabit-capable cable footprint in the US.
Astound Broadband
Hybrid fiber-coaxial cable, with fiber across part of its footprint; plans commonly range from 300 Mbps up to gigabit-plus tiers where available. Known for overbuilding incumbents in dense urban markets.
See if fiber is available at your address
Enter your address and we'll compare the fiber providers that actually serve your home — free and no obligation.
Check My San Francisco Address →Fiber vs cable in San Francisco
Cable currently reaches more of San Francisco than fiber does — 97.4% of locations versus 44.0% at 100/20 Mbps. But coverage and quality are different questions. The gap shows up at the top of the range: 43.8% of San Francisco can get gigabit over fiber, compared with 33.5% over cable.
Where it is available, fiber generally outperforms cable and DSL on speed consistency, upload performance and latency — which matters most for video calls, cloud backups, and a household with several people online at once. Actual speeds, pricing and availability are set and confirmed by each provider. How fiber availability works →
Looking for business internet in San Francisco?
Everything above is the residential figure. The FCC reports business availability separately, and in San Francisco fiber reaches 45.6% of business locations against 44.0% of homes — so a street with fiber in it does not settle the question for a commercial premises. Business fiber in San Francisco →
Common questions about internet in San Francisco
Is fiber internet available in San Francisco?
What percentage of San Francisco can get gigabit internet?
Is cable or fiber more widely available in San Francisco?
How do I find out which internet providers serve my exact address in San Francisco?
Is FiberNear an internet provider?
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