Internet providers in South San Francisco, CA
South San Francisco is a city in California with about 64,487 residents and roughly 25,399 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in South San Francisco, CA
Share of residential locations in South San Francisco where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Xfinity | Cable | 98% | |
| 2 | AT&T | Fiber, DSL, Fixed wireless | 93% | Check availability |
| 3 | Etheric Communications | Fixed wireless | 84% | |
| 4 | T-Mobile Home Internet | Fixed wireless | 72% | |
| 5 | Astound Broadband | Fiber, Cable | 69% | |
| 6 | Verizon | Fiber, Fixed wireless | 36% | Check availability |
| 7 | Sonic Telecom | Fiber | 32% | |
| 8 | Unwired | Fixed wireless | 18% | |
| 9 | California Internet | Fixed wireless | 12% | |
| 10 | Sail Internet Holdings | Fixed wireless | 3% |
Show 1 more provider with smaller coverage
| 11 | Kwikbit Internet | Fixed wireless | 1% |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What to know about internet in South San Francisco
Xfinity reports service to the most residential locations in South San Francisco, about 98%. 5 providers report coverage of at least half of locations (Xfinity, AT&T, Etheric Communications, T-Mobile Home Internet, and Astound Broadband), so the market looks competitive. Fiber-focused providers reporting service here include Sonic Telecom (32%). Etheric Communications and T-Mobile Home Internet offer fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in South San Francisco?
Fiber is widely available: about 71% of locations in South San Francisco can get it. Gigabit-class service (1,000 Mbps down) is reported for about 90% of locations. DSL is still reported for about 40% of locations, which can be a fallback where fiber and cable do not reach. Fixed wireless home internet is reported for about 97% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in South San Francisco that providers report they can serve. City-level figures, not your address.
South San Francisco at a glance
About 94% of households in South San Francisco have a broadband subscription, 2 points above the California average of 92%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near South San Francisco
- San Bruno, CA (4 mi)
- Millbrae, CA (4 mi)
- Burlingame, CA (5 mi)
- Daly City, CA (5 mi)
- Pacifica, CA (6 mi)
- San Mateo, CA (7 mi)
- Alameda, CA (9 mi)
- Foster City, CA (9 mi)
- Belmont, CA (11 mi)
- Oakland, CA (11 mi)
- San Leandro, CA (12 mi)
- San Carlos, CA (12 mi)
- Redwood City, CA (13 mi)
- San Lorenzo, CA (13 mi)
- Emeryville, CA (13 mi)
- Half Moon Bay, CA (13 mi)
- Piedmont, CA (14 mi)
- Ashland, CA (14 mi)
- Cherryland, CA (15 mi)
- Hayward, CA (15 mi)
Frequently asked questions
Is fiber internet available in South San Francisco?
Yes, in part. About 71% of residential locations in South San Francisco can get fiber, 99% can get cable, and about 90% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in South San Francisco?
Xfinity reports service to about 98% of residential locations in South San Francisco, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve South San Francisco?
10 providers report service to at least 2% of locations in South San Francisco, and 5 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
Is there fiber internet in South San Francisco?
Fiber providers reporting service in South San Francisco include Sonic Telecom (32% of locations). Other providers may also offer fiber in parts of the city, so check your address.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in South San Francisco?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Check your exact address
Coverage for a whole community cannot tell you what is available at your door. Enter your ZIP code, then confirm with each provider.
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