Best Internet Providers in Downtown South San Francisco, South San Francisco, CA
All 10 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Downtown South San Francisco, South San Francisco, CA
Downtown South San Francisco has 10 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Downtown South San Francisco.
The Best Internet in Downtown South San Francisco, South San Francisco, CA at a Glance
Downtown South San Francisco Internet Providers, Ranked by Coverage, Speed and Customer Ratings
XFINITY
Connection
Customer Rating
Fiber
Cable
Astound Broadband
Connection
Customer Rating
Fiber
Cable
DSL
EarthLink
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
Providers with less than 1% coverage in this neighborhood are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Downtown South San Francisco ratings may vary and are shown below.
Who is the Best Internet Provider in Downtown South San Francisco, South San Francisco, CA?
Sonic is the best internet provider in Downtown South San Francisco based on California customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Sonic had the best reviews at the local, state, and national levels versus all available providers in Downtown South San Francisco, making it a solid recommendation among providers with reviews. Sonic is an option for 83.84% of the neighborhood.
Which Providers are Available at my Home in Downtown South San Francisco?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Downtown South San Francisco, South San Francisco
- AT&T - fiber coverage map
- EarthLink - fiber coverage map
- XFINITY - cable coverage map
- Astound Broadband - cable coverage map
- Sonic - fiber coverage map
- GeoLinks - fixed wireless coverage map
- Astound Broadband - fiber coverage map
- Etheric Networks - fixed wireless coverage map
- Verizon - fixed wireless coverage map
- XFINITY - fiber coverage map
- Sail Internet - fixed wireless coverage map
- Astound Broadband - dsl coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
How Downtown South San Francisco Compares to the Rest of South San Francisco
Fiber reaches 99.3% of homes in Downtown South San Francisco, against 90.5% across South San Francisco and 84.9% across San Mateo County. Households in Downtown South San Francisco are larger than the US average (2.8 people against 2.7); 9% of workers work from home (US 15%); and the median household income is $91,162 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Downtown South San Francisco
Which Fiber Internet Providers are Available in Downtown South San Francisco?
EarthLink Fiber in Downtown South San Francisco, South San Francisco, CA
Availability:
89.0%
Customer Rating:
(6)
Avg. Download Speed
4,661 Mbps
EarthLink offers Fiber service to 89.0% of Downtown South San Francisco homes. Across the neighborhood, EarthLink Fiber has speeds up to 4,661 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for EarthLink Fiber. EarthLink Fiber is rated about the same as other types of internet service available in Downtown South San Francisco from EarthLink in terms of customer satisfaction.
AT&T Fiber in Downtown South San Francisco, South San Francisco, CA
Availability:
89.0%
Customer Rating:
(542)
Avg. Download Speed
4,661 Mbps
AT&T offers Fiber service to 89.0% of Downtown South San Francisco homes. Across the neighborhood, AT&T Fiber has speeds up to 4,661 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for AT&T Fiber. AT&T Fiber is rated lower than other types of internet service available in Downtown South San Francisco from AT&T in terms of customer satisfaction.
Sonic Fiber in Downtown South San Francisco, South San Francisco, CA
Availability:
83.8%
Customer Rating:
(14)
Avg. Download Speed
1,000 Mbps
Sonic offers Fiber service to 83.8% of Downtown South San Francisco homes. Across the neighborhood, Sonic Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Astound Broadband Fiber in Downtown South San Francisco, South San Francisco, CA
Availability:
16.5%
Customer Rating:
(21)
Avg. Download Speed
1,500 Mbps
Astound Broadband offers Fiber service to 16.5% of Downtown South San Francisco homes. Across the neighborhood, Astound Broadband Fiber has speeds up to 1,500 Mbps
XFINITY Fiber in Downtown South San Francisco, South San Francisco, CA
Availability:
9.2%
Customer Rating:
(300)
Avg. Download Speed
1,728 Mbps
XFINITY from Comcast offers Fiber service to 9.2% of Downtown South San Francisco homes. Across the neighborhood, XFINITY Fiber has speeds up to 1,728 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 2,000, with an average of 1,331 Mbps throughout the neighborhood. XFINITY Fiber is rated about the same as other types of internet service available in Downtown South San Francisco from XFINITY in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Downtown South San Francisco?
Etheric Networks Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
99.0%
Customer Rating:
(0)
Avg. Download Speed
250 Mbps
Etheric Networks offers Fixed Wireless service to 99.0% of Downtown South San Francisco homes. Across the neighborhood, Etheric Networks Fixed Wireless is the only type of service available from the company, with speeds up to 250 Mbps
EarthLink Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
98.6%
Customer Rating:
(4)
Avg. Download Speed
40 Mbps
EarthLink offers Fixed Wireless service to 98.6% of Downtown South San Francisco homes. Across the neighborhood, EarthLink Fixed Wireless has speeds up to 40 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 6.4 Mbps throughout the neighborhood.
AT&T Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
98.6%
Customer Rating:
(205)
Avg. Download Speed
40 Mbps
AT&T offers Fixed Wireless service to 98.6% of Downtown South San Francisco homes. Across the neighborhood, AT&T Fixed Wireless has speeds up to 40 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 6.4 Mbps throughout the neighborhood.
T-Mobile Home Internet Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
97.9%
Customer Rating:
(342)
Avg. Download Speed
43 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 97.9% of Downtown South San Francisco homes. Across the neighborhood, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 43 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 7.1 Mbps throughout the neighborhood.
Verizon Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
86.0%
Customer Rating:
(362)
Avg. Download Speed
192 Mbps
Verizon offers Fixed Wireless service to 86.0% of Downtown South San Francisco homes. Across the neighborhood, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 192 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 14 Mbps throughout the neighborhood.
Sail Internet Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
44.8%
Customer Rating:
(0)
Avg. Download Speed
200 Mbps
Sail Internet offers Fixed Wireless service to 44.8% of Downtown South San Francisco homes. Across the neighborhood, Sail Internet Fixed Wireless is the only type of service available from the company, with speeds up to 200 Mbps
GeoLinks Fixed Wireless in Downtown South San Francisco, South San Francisco, CA
Availability:
33.1%
Customer Rating:
(0)
Avg. Download Speed
825 Mbps
GeoLinks offers Fixed Wireless service to 33.1% of Downtown South San Francisco homes. Across the neighborhood, GeoLinks Fixed Wireless is the only type of service available from the company, with speeds up to 825 Mbps, with speeds from 200 Mpbs up to 1,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for GeoLinks Fixed Wireless.
Which Cable Internet Providers are Available in Downtown South San Francisco?
XFINITY Cable in Downtown South San Francisco, South San Francisco, CA
Availability:
100.0%
Customer Rating:
(2077)
Avg. Download Speed
1,719 Mbps
XFINITY from Comcast offers Cable service to 100.0% of Downtown South San Francisco homes. Across the neighborhood, XFINITY Cable has speeds up to 1,719 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 250, with an average of 175 Mbps throughout the neighborhood. XFINITY Cable is rated the same as other types of internet service available in Downtown South San Francisco from XFINITY in terms of customer satisfaction.
Astound Broadband Cable in Downtown South San Francisco, South San Francisco, CA
Availability:
100.0%
Customer Rating:
(97)
Avg. Download Speed
1,500 Mbps
Astound Broadband offers Cable service to 100.0% of Downtown South San Francisco homes. Across the neighborhood, Astound Broadband Cable has speeds up to 1,500 Mbps
Which DSL Internet Providers are Available in Downtown South San Francisco?
EarthLink DSL in Downtown South San Francisco, South San Francisco, CA
Availability:
96.6%
Customer Rating:
(5)
Avg. Download Speed
75 Mbps
EarthLink offers DSL service to 96.6% of Downtown South San Francisco homes. Across the neighborhood, EarthLink DSL has speeds up to 75 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 16 Mbps throughout the neighborhood. EarthLink DSL is rated higher than other types of internet service available in Downtown South San Francisco from EarthLink in terms of customer satisfaction.
AT&T DSL in Downtown South San Francisco, South San Francisco, CA
Availability:
96.6%
Customer Rating:
(304)
Avg. Download Speed
75 Mbps
AT&T offers DSL service to 96.6% of Downtown South San Francisco homes. Across the neighborhood, AT&T DSL has speeds up to 75 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 16 Mbps throughout the neighborhood. AT&T DSL is rated about the same as other types of internet service available in Downtown South San Francisco from AT&T in terms of customer satisfaction.
Astound Broadband DSL in Downtown South San Francisco, South San Francisco, CA
Availability:
7.3%
Customer Rating:
(3)
Avg. Download Speed
1,000 Mbps
Astound Broadband offers DSL service to 7.3% of Downtown South San Francisco homes. Across the neighborhood, Astound Broadband DSL has speeds up to 1,000 Mbps
How Downtown South San Francisco Compares to Its Neighbors
The 10 neighborhoods nearest to Downtown South San Francisco that have their own pages are all within 4 miles. Among them, Westview (Pacifica) has the most homes with fiber (100.0%) and Visitacion Valley (San Francisco) the fewest (67.0%); Downtown South San Francisco has 99.3%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Downtown South San Francisco (this page) | 4,692 | 99.3% | 4,419 Mbps | 12.5 | A | 67/100 |
| Visitacion Valley (San Francisco) | 23,949 | 67.0% | 6,346 Mbps | 8.5 | B+ | 80/100 |
| Hillside (Daly City) | 10,312 | 76.5% | 4,229 Mbps | 10.9 | B+ | 81/100 |
| Serramonte (Daly City) | 10,253 | 73.7% | 3,533 Mbps | 10.4 | B+ | 84/100 |
| Westborough | 8,101 | 68.4% | 3,986 Mbps | 9.2 | B+ | 90/100 |
| Lindenville | 7,031 | 90.1% | 4,607 Mbps | 8.2 | A- | 89/100 |
| El Camino | 6,578 | 92.5% | 4,720 Mbps | 10.3 | A- | 82/100 |
| Sunshine Gardens | 5,778 | 89.4% | 4,388 Mbps | 11 | A- | 80/100 |
| Westview (Pacifica) | 5,631 | 100.0% | 5,000 Mbps | 10.2 | A | 87/100 |
| Serra Highlands | 4,578 | 94.2% | 4,823 Mbps | 9.5 | A- | 83/100 |
| Paradise Valley | 3,857 | 99.4% | 4,982 Mbps | 11.4 | A | 85/100 |
Who is the Fastest Internet Provider in Downtown South San Francisco?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by Sonic. On the other hand, based on data provided by the internet providers to the FCC, AT&T and EarthLink should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Downtown South San Francisco
| AT&T | 5,000 |
|---|---|
| EarthLink | 5,000 |
| XFINITY from Comcast | 2,000 |
| Astound Broadband | 1,500 |
| Sonic | 1,000 |
| Sail Internet | 1,000 |
| GeoLinks | 1,000 |
| Verizon | 300 |
| Etheric Networks | 250 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Downtown South San Francisco. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Downtown South San Francisco Internet Providers
Based on 418 reviews from California internet customers, Sonic is the best internet service provider for Downtown South San Francisco residents. Sonic was rated at an average of 4.43 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in California, with 4.11 out of 5 stars and 97.9% coverage in Downtown South San Francisco.
At a national level, based on 4739 national reviews for any of the providers listed above, Sonic is rated higher than any other provider, with a rating of 4.43 out of 5.
Local, State, and National Ratings for all Downtown South San Francisco Internet Providers
The table below shows average customer ratings from customers in Downtown South San Francisco, California, and customers throughout the country.
| ISP / Tech Type | Downtown South San Francisco Overall | California Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Sonic | (0) | (14) | (14) | View Plans | ||
| T-Mobile Home Internet | (0) | (27) | (342) | View Plans | ||
| Verizon | (0) | (28) | (816) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| Viasat | (0) | (1) |  (12) | View Plans | ||
| XFINITY | (1) | (211) | (2379) | View Plans | ||
| EarthLink | (0) | (2) | (15) | View Plans | ||
| Astound Broadband | (0) | (17) | (122) | View Plans | ||
| AT&T | (0) | (119) | (1051) | View Plans | ||
| Sail Internet | (0) | (0) | (0) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in Downtown South San Francisco
Based on data reported by Downtown South San Francisco ISPs to the FCC, the fastest speeds in the neighborhood are available through AT&T and EarthLink. These internet providers offer speeds up to 5,000 Mbps in Downtown South San Francisco. Therefore, the average customer can get up to 4,157 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with Sonic. This indicates Sonic reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Downtown South San Francisco Speed | California Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Sonic | (0) | (14) | (14) | View Plans | ||
| T-Mobile Home Internet | (0) | (27) | (342) | View Plans | ||
| XFINITY | (1) | (211) | (2379) | View Plans | ||
| Verizon | (0) | (28) | (816) | View Plans | ||
| Astound Broadband | (0) | (17) | (122) | View Plans | ||
| HughesNet | (0) |  (1) | (25) | View Plans | ||
| Viasat | (0) |  (1) | (12) | View Plans | ||
| AT&T | (0) | (119) | (1051) | View Plans | ||
| EarthLink | (0) | (2) | (15) | View Plans | ||
| Sail Internet | (0) | (0) | (0) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in Downtown South San Francisco?
Of the providers in Downtown South San Francisco, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in Downtown South San Francisco where enough of them have reviewed a provider, otherwise across California or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
T-Mobile Home Internet is rated 4.26 out of 5 for price, which is higher than the average across all internet providers in the country. Sonic is rated second for affordability, with an average price rating of 4.14 out of 5.
The table below shows how customers in Downtown South San Francisco, California, and the United States rated the affordability of their internet service.
Rated Affordability in Downtown South San Francisco
| ISP / Tech Type | Downtown South San Francisco Affordability | California Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (27) | (342) | View Plans | ||
| Sonic | (0) | (14) | (14) | View Plans | ||
| Verizon | (0) | (28) | (816) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| EarthLink | (0) | (2) | (15) | View Plans | ||
| AT&T | (0) | (119) | (1051) | View Plans | ||
| Astound Broadband | (0) | (17) | (122) | View Plans | ||
| XFINITY | (1) | (211) | (2379) | View Plans | ||
| Sail Internet | (0) | (0) | (0) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Customer Reviews for Internet Service Providers in California
Customer Reviews
Steve
ting Fiber
November 13, 2026 Slow, 1/10th the speed they advertised
Robert
Verizon Fixed Wireless
November 10, 2026 Was cut off with .out notice due to upgrade and was not provided connection to upgrade from the same location (tower). Causing further problems in service and added cost.
ISPReports User
AT&T DSL
November 08, 2026 Lousy
ISPReports User
Fidium
November 08, 2026 Vernice
Frontier Fiber
November 01, 2026 Horrible this is horrible. My internet has been down for two days in a half. Never again
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Which ISP Should You Choose in Downtown South San Francisco?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Downtown South San Francisco is Sonic.
- The fastest internet provider should be AT&T and EarthLink. Considering speed for the money and reliability in speeds, Sonic may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Downtown South San Francisco is T-Mobile Home Internet.
- XFINITY from Comcast, Viasat, HughesNet, EarthLink, AT&T, and Astound Broadband has the broadest coverage in Downtown South San Francisco, available to 100.0% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.