In Downtown South San Francisco there are 5 residential Fiber providers covering 99.32% of the neighborhood. The average home can get speeds up to 4,298 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Fiber internet providers in Downtown South San Francisco, South San Francisco, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Downtown South San Francisco, South San Francisco, CA please click below.
Downtown South San Francisco, South San Francisco, CA Availability Maps
Fiber Internet Service Providers in Downtown South San Francisco
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Downtown South San Francisco are not shown.
Downtown South San Francisco Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Downtown South San Francisco is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 99.32% of Downtown South San Francisco. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Downtown South San Francisco above to see who has service at your home.
How fast is fiber internet in Downtown South San Francisco?
The map below shows maximum fiber internet speeds by area in Downtown South San Francisco.
Fiber Internet Speed Key
The average Downtown South San Francisco home can get up to 4,298 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 5,000 Mbps, which 81.48% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 14.64% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Downtown South San Francisco.
Fiber internet speeds tend to be faster in the north parts of Downtown South San Francisco, and slower in the central areas of the neighborhood.
Is fiber the fastest internet I can get in Downtown South San Francisco?
The fastest internet for you may vary based on where in Downtown South San Francisco you live. In general, cable competes most often with fiber in the neighborhood.
- Fiber is the fastest internet type for 81.82% of Downtown South San Francisco homes.
- Cable is fastest for 18.18% of the neighborhood.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Downtown South San Francisco homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Downtown South San Francisco, along with details on where in Downtown South San Francisco and at what speeds.
EarthLink Fiber in Downtown South San Francisco, South San Francisco, CA
EarthLink fiber coverage
About 87.08%, or 4,086 people, have EarthLink fiber internet available to them in the neighborhood. The company covers the entire Downtown South San Francisco area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Downtown South San Francisco.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Downtown South San Francisco. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are 2 different maximum speeds throughout Downtown South San Francisco. The fastest plan anyone in Downtown South San Francisco can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the neighborhood-wide average maximum speed for Downtown South San Francisco customers is up to 4,743 Mbps.
Show all download speeds
- 93.6% up to 5,000.0 Mbps
- 6.4% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Downtown South San Francisco download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Downtown South San Francisco fiber providers. EarthLink offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Downtown South San Francisco is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 4,743 Mbps.
Show all upload speeds
- 93.6% up to 5,000.0 Mbps
- 6.4% up to 1,000.0 Mbps
AT&T Fiber in Downtown South San Francisco, South San Francisco, CA
AT&T fiber coverage
About 87.08%, or 4,086 people, have AT&T fiber internet available to them in the neighborhood. The company covers the entire Downtown South San Francisco area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of Downtown South San Francisco.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Downtown South San Francisco. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are 2 different maximum speeds throughout Downtown South San Francisco. The fastest plan anyone in Downtown South San Francisco can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the neighborhood-wide average maximum speed for Downtown South San Francisco customers is up to 4,743 Mbps.
Show all download speeds
- 93.6% up to 5,000.0 Mbps
- 6.4% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Downtown South San Francisco download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Downtown South San Francisco fiber providers. AT&T offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Downtown South San Francisco is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 4,743 Mbps.
Show all upload speeds
- 93.6% up to 5,000.0 Mbps
- 6.4% up to 1,000.0 Mbps
Sonic Fiber in Downtown South San Francisco, South San Francisco, CA
Sonic fiber coverage
About 83.84%, or 3,934 people, have Sonic fiber internet available to them in the neighborhood. The company covers the northeast, north, west, southwest, central, east, northwest, and south Downtown South San Francisco area. Sonic is a large internet service provider internet service providers in the US, with internet service available in much of Downtown South San Francisco.
Sonic fiber download speeds
Sonic is below average when comparing download speeds to all other internet providers in Downtown South San Francisco. Versus other fiber providers in the area, Sonic fiber is the slowest. There are no different maximum speeds throughout Downtown South San Francisco. The fastest plan anyone in Downtown South San Francisco can order from Sonic goes up to 1,000 Mbps, and all Downtown South San Francisco customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sonic fiber upload speeds
In Downtown South San Francisco download speeds tend to be equal to than upload speeds for Sonic fiber. Compared to other ISPs, Sonic is above average where upload speeds are concerned, and below average compared to other Downtown South San Francisco fiber providers. Sonic offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in Downtown South San Francisco is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Astound Broadband Fiber in Downtown South San Francisco, South San Francisco, CA
Astound Broadband fiber coverage
About 16.52%, or 775 people, have Astound Broadband fiber internet available to them in the neighborhood. The company covers the southeast, south, southwest, central, and east Downtown South San Francisco area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Downtown South San Francisco.
Astound Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Downtown South San Francisco. Versus other fiber providers in the area, Astound Broadband fiber is below average. There are no different maximum speeds throughout Downtown South San Francisco. The fastest plan anyone in Downtown South San Francisco can order from Astound Broadband goes up to 1,500 Mbps, and all Downtown South San Francisco customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband fiber upload speeds
In Downtown South San Francisco download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is above average where upload speeds are concerned, and below average compared to other Downtown South San Francisco fiber providers. Astound Broadband offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in Downtown South San Francisco is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 Mbps
XFINITY from Comcast Fiber in Downtown South San Francisco, South San Francisco, CA
XFINITY fiber coverage
About 9.21%, or 432 people, have XFINITY fiber internet available to them in the neighborhood. The company covers the southeast and south Downtown South San Francisco area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Downtown South San Francisco.
XFINITY from Comcast fiber download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Downtown South San Francisco. Versus other fiber providers in the area, XFINITY fiber is below average. There are 2 different maximum speeds throughout Downtown South San Francisco. The fastest plan anyone in Downtown South San Francisco can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the neighborhood-wide average maximum speed for Downtown South San Francisco customers is up to 1,728 Mbps.
Show all download speeds
- 66.0% up to 2,000.0 Mbps
- 34.0% up to 1,200.0 Mbps
XFINITY from Comcast fiber upload speeds
In Downtown South San Francisco download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other Downtown South San Francisco fiber providers. XFINITY offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Downtown South San Francisco is up to 250 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 177 Mbps.
Show all upload speeds
- 66.0% up to 250.0 Mbps
- 34.0% up to 35.0 Mbps
Downtown South San Francisco Fiber by Area
This information is most helpful to those looking for homes or considering moving to Downtown South San Francisco or any of the areas nearby.
How does fiber internet in Downtown South San Francisco compare to the rest of South San Francisco?
Fiber internet speeds in Downtown South San Francisco are much faster versus the average speeds in South San Francisco: 0.00 Mbps in South San Francisco versus 4,298 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in South San Francisco is 0.00% versus 99.32% in Downtown South San Francisco.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Downtown South San Francisco are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other neighborhoods?
Below are neighborhoods nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Neighborhoods
- Paradise Valley, South San Francisco, CA: more fiber coverage, faster speeds
- Sunshine Gardens, South San Francisco, CA: less fiber coverage, faster speeds
- El Camino, South San Francisco, CA: less fiber coverage, faster speeds
- Lindenville, South San Francisco, CA: less fiber coverage, faster speeds
- Serra Highlands, South San Francisco, CA: less fiber coverage, faster speeds
- Westborough, South San Francisco, CA: less fiber coverage, faster speeds
- Serramonte, Daly City, CA: less fiber coverage, slower speeds
- Westview, Pacifica, CA: more fiber coverage, faster speeds
- Hillside, Daly City, CA: less fiber coverage, faster speeds
- Visitacion Valley, San Francisco, CA: less fiber coverage, faster speeds
Neighborhoods with Similar Populations
- Yorktown, Huntington Beach, CA: more fiber coverage, faster speeds
- Central Lawrenceville, Pittsburgh, PA: more fiber coverage, slower speeds
- Geneva, Orem, UT: less fiber coverage, faster speeds
- Villages at Rancho El Dorado, Silver Bell, AZ: less fiber coverage, faster speeds
- The Plot, Scranton, PA: less fiber coverage, slower speeds
- McKinney, Austin, TX: less fiber coverage, faster speeds
- Athenia, Clifton, NJ: more fiber coverage, faster speeds
- Wildwood Park, San Bernardino, CA: less fiber coverage, faster speeds
- Far West, Wilsonville, OR: less fiber coverage, faster speeds
- Farm Hills, Redwood City, CA: less fiber coverage, faster speeds