California · County profile
Internet providers in San Mateo County, CA
Xfinity, AT&T, T-Mobile and 2 other providers report service to most homes in San Mateo County; 4 more providers report service in some areas. Satellite service is available almost everywhere.
Check what's available at your address
Type your ZIP code to see the providers reported near you in San Mateo County. Then call to confirm plans at your exact address.
Or call and we check for you
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Who serves this area
Providers that serve San Mateo County
Each card says whether the provider reports service to most homes here or only in some areas. Many homes can choose more than one provider; call to check plans and prices at your address.
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XfinityCable
Available
Reports service to most homes in San Mateo County.
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AT&T
Available
Reports service to most homes in San Mateo County.
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T-MobileFixed wireless
Available
Reports service to most homes in San Mateo County.
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Etheric Communications, LLC.
Available
Reports service to most homes in San Mateo County.
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Verizon
Available
Reports service to most homes in San Mateo County.
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AstoundCable
Available in some areas
Reports service to part of San Mateo County; check your street.
Call to check plans and price (815) 934-8169 -
Sonic
Available in some areas
Reports service to part of San Mateo County; check your street.
Call to check plans and price (815) 934-8169 -
Unwired Ltd.
Available in some areas
Reports service to part of San Mateo County; check your street.
Call to check plans and price (815) 934-8169 -
GeoLinks
Available in some areas
Reports service to part of San Mateo County; check your street.
Call to check plans and price (815) 934-8169
5 more providers report smaller service areas; see the table.
Available almost everywhere satellite, shown separately
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HughesnetSatellite
Available almost everywhere by satellite
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ViasatSatellite
Available almost everywhere by satellite
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StarlinkSatellite
Available almost everywhere by satellite
Show all 17 providers as a table
| Provider | Availability | Main technology | Company |
|---|---|---|---|
| Xfinity | Available | Cable | Comcast Corporation |
| AT&T | Available | Not specified | AT&T Inc. |
| T-Mobile | Available | Fixed wireless | T-Mobile USA, Inc. |
| Etheric Communications, LLC. | Available | Not specified | Etheric Communications, LLC. |
| Verizon | Available | Not specified | Verizon Communications Inc. |
| Astound | Available in some areas | Cable | Radiate Holdings, LP |
| Sonic | Available in some areas | Not specified | Sonic Telecom, LLC |
| Unwired Ltd. | Available in some areas | Not specified | Unwired Ltd. |
| GeoLinks | Available in some areas | Not specified | California Internet |
| Cruzio Internet | Reported for a few homes only | Not specified | Cruzio Internet |
| Sail Internet Holdings LLC | Reported for a few homes only | Not specified | Sail Internet Holdings LLC |
| Ridge Wireless Inc. | Reported for a few homes only | Not specified | Ridge Wireless Inc. |
| Race Telecommunications, Inc. | Reported for a few homes only | Not specified | Race Telecommunications, Inc. |
| Tekify, LLC | Reported for a few homes only | Not specified | Tekify, LLC |
| Hughesnet | Available almost everywhere (satellite) | Satellite | EchoStar Corporation |
| Viasat | Available almost everywhere (satellite) | Satellite | Viasat, Inc. |
| Starlink | Available almost everywhere (satellite) | Satellite | Space Exploration Technologies Corp. |
Source: FCC National Broadband Map, provider filings as of December 30, 2025 · How we use the data
Town by town
Towns and cities in San Mateo County
| Town | Locations | Providers |
|---|---|---|
| Atherton | 2,542 | 10 |
| Baywood Park | 650 | 7 |
| Belmont | 12,421 | 10 |
| Brisbane | 2,466 | 9 |
| Broadmoor | 1,437 | 10 |
| Burlingame | 16,322 | 11 |
| Colma | 675 | 11 |
| Daly City | 35,830 | 12 |
| East Palo Alto | 8,116 | 12 |
| El Granada | 2,297 | 8 |
| Emerald Lake Hills | 1,673 | 8 |
| Foster City | 13,793 | 10 |
| Half Moon Bay | 5,187 | 8 |
| Highlands | 858 | 8 |
| Hillsborough | 3,937 | 8 |
| Menlo Park | 17,263 | 13 |
| Millbrae | 9,397 | 10 |
| Montara | 1,115 | 6 |
| Moss Beach | 1,443 | 8 |
| North Fair Oaks | 4,797 | 12 |
| Pacifica | 15,282 | 9 |
| Portola Valley | 2,346 | 9 |
| Redwood City | 35,935 | 11 |
| San Bruno | 16,741 | 11 |
| San Carlos | 15,100 | 10 |
| San Mateo | 47,771 | 12 |
| South San Francisco | 25,399 | 12 |
| West Menlo Park | 1,480 | 11 |
| Woodside | 2,212 | 10 |
Where this comes fromFCC filings and how to check one address
Check service at your address
The figures on this page summarize what providers reported to the FCC for all homes in San Mateo County. They do not confirm that any provider serves a particular address, and providers' reports can overstate coverage. Two ways to check your own address:
- Search your address on the FCC National Broadband Map.
- Call (815) 934-8169 and we will look up the providers and plans available at your address. We are an independent service, not your provider.
Sources
Provider availability comes from the FCC National Broadband Map (provider filings as of December 30, 2025): a provider is "available" where its filing covers most homes and "available in some areas" where it covers part of them. Household counts come from the Census Bureau's American Community Survey (ACS 5-year 2020-2024), which are estimates with margins of error.
- FCC National Broadband Map — Broadband Data Collection public data (D25 filing, released 2026-09-29). Data as of December 30, 2025; retrieved October 9, 2026.
- U.S. Census Bureau, American Community Survey 5-year 2020-2024 estimates (tables B01003, B25001, B19013, B28002). Data as of ACS 5-year 2020-2024; retrieved October 9, 2026.
- U.S. Census Bureau 2024 Gazetteer Files (town locations) and 2020 Census block files (which county each town lies in). Data as of January 1, 2024 boundaries (Gazetteer); 2020 Census blocks; retrieved October 9, 2026.
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