Internet in San Francisco at a glance
- Top providers
- AT&T Fiber, Sonic, Xfinity, T-Mobile 5G
- Fastest option
- Sonic — symmetrical fiber up to 8–10 Gig (AT&T Fiber up to 5 Gig)
- Cheapest starting price
- Xfinity from ~$40/mo; Sonic from $50/mo
- Fiber availability
- Strong fiber — AT&T Fiber and Sonic (up to 8–10 Gig)
- Connection types
- Fiber, cable, 5G fixed wireless, satellite
San Francisco has excellent fiber — AT&T Fiber is the top all-around pick (symmetrical up to 5 Gig), Sonic is the local speed champion (up to 8–10 Gig), and Xfinity is the near-universal cable provider serving virtually every address in the city.
In dense, tech-savvy San Francisco, fiber is the way to go. AT&T Fiber offers symmetrical multi-gig service across much of the city, and Sonic — a beloved local provider — reaches up to 8–10 Gig where built out, with flat pricing and a strong privacy reputation. Xfinity's cable covers nearly every address as the widely-available alternative.
📞 Fastest way to get connected in San Francisco
Availability changes street by street — especially fiber. The quickest way to know exactly what's at your address (and lock in today's promotions) is to call a free advisor at (844) 933-1065. No obligation, and they'll check every provider for your specific San Francisco address in minutes.
Internet providers available in San Francisco
Here's a snapshot of the main internet providers serving San Francisco, California. Because availability is address-specific, call (844) 933-1065 to confirm what's at your exact location.
| Provider | Type | Top speed | From* | Availability |
|---|---|---|---|---|
| AT&T | Fiber & 5G Air | Up to 5 Gig | $34/mo | Fiber much of the city; Air elsewhere |
| Sonic | Fiber | Up to 10 Gig | $50/mo | the fastest in the city where available |
| Xfinity | Cable | Up to 2 Gig | $40/mo | virtually every address |
| T-Mobile 5G Home | 5G | Up to ~415 Mbps | $35/mo | Citywide |
| Verizon 5G Home | 5G | Up to 1 Gig | $35/mo | Parts of city |
| Satellite (Starlink/Viasat) | Satellite | Up to ~350 Mbps | $50/mo | Everywhere |
*Starting/promotional prices with typical conditions, illustrative and varying by address. Promotions change frequently — confirm current pricing by phone.
San Francisco provider breakdown
AT&T
AT&T offers two products in San Francisco: AT&T Fiber — fast symmetrical speeds up to 5 Gig from ~$34/mo, covering much of the city — and AT&T Internet Air (5G) where fiber hasn't reached. Avoid the older AT&T Internet (DSL); fiber is the one to get. No annual contract, reward cards.
📞 Call about AT&T — (844) 933-1065Sonic
Sonic is a beloved local fiber provider in San Francisco, with symmetrical speeds up to 8–10 Gig, flat pricing and strong privacy/customer-service reputation — the fastest in the city where available.
📞 Call about Sonic — (844) 933-1065Xfinity
The most widely available wired option in San Francisco, covering virtually every address, with speeds up to 2 Gig and a free mobile line for 12 months with qualifying internet. (1.2 TB data cap in most markets.)
📞 Call about Xfinity — (844) 933-1065T-Mobile 5G Home
Nationwide 5G home internet, available across San Francisco. $35/mo with AutoPay and a T-Mobile voice line, no contract, no equipment fees, and a 5-year price guarantee.
📞 Call about T-Mobile 5G Home — (844) 933-1065Verizon 5G Home
A wireless alternative in San Francisco, from $35/mo with a Verizon mobile plan, plus a multi-year price guarantee and gift-card offers.
📞 Call about Verizon 5G Home — (844) 933-1065Satellite (Starlink/Viasat)
Available anywhere as a fallback. Rarely the first choice in a well-served city, but an option for addresses wired and 5G providers don't reach. Starlink now offers speeds up to ~350 Mbps with no data caps.
📞 Call about Satellite (Starlink/Viasat) — (844) 933-1065Talk to a free San Francisco advisor now
Check availability at your exact address and lock in today's promotions — free, no obligation, 7 days a week.
📞 Call (844) 933-1065Choosing the best internet in San Francisco
For most San Francisco households:
- Want the fastest? Sonic fiber (up to 8–10 Gig) where available.
- Want great all-around fiber? AT&T Fiber — symmetrical up to 5 Gig from $34.
- Want the most-available option + free mobile line? Xfinity serves virtually every address.
Call a free advisor at (844) 933-1065 to check exactly what's at your address.
Bundling internet in San Francisco
In San Francisco, Xfinity's free mobile line for 12 months and AT&T's fiber-plus-wireless discount are the strongest bundles. T-Mobile and Verizon customers can bundle their 5G home internet with their phone plans. For the full picture, see our complete bundling guide, internet + mobile, and free mobile line deals.
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Frequently asked questions
AT&T Fiber is the top all-around pick (symmetrical up to 5 Gig from $34), Sonic is the fastest (up to 8–10 Gig where available), and Xfinity is the most widely available (cable to virtually every address). The best for you depends on your exact address — call (844) 933-1065 to check.
Yes — San Francisco has strong fiber from AT&T Fiber (much of the city) and Sonic (the fastest, up to 8–10 Gig, location-dependent). Confirm fiber for your exact address.
Xfinity starts around $40/month, AT&T Fiber around $34, Sonic around $50, and T-Mobile/Verizon 5G around $35. Multi-gig plans cost more. Confirm current rates for your address.
Xfinity's free mobile line for 12 months and AT&T Fiber's reward card plus wireless discount are standout deals, while Sonic offers simple flat pricing. Call a free advisor to find the best deal for your address.
Yes — several providers in San Francisco offer no-contract plans, including T-Mobile 5G Home, Verizon, and the major fiber and cable providers. Call to see which reach your home.