Foster City Internet Providers
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Foster City has 12 internet options – View all▼
Foster City has one fiber provider, AT&T, and multiple cable providers. Symmetric speeds of 5,000 Mbps are available in parts of the city.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| AT&T | 5,000 | 5,000 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 250 | 100% |
| Astound | 1,500 | 50 | 10% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Sail Internet | 1,000 | 1,000 | 25% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Etheric Networks | 250 | 100 | 100% |
| Verizon | 300 | 20 | 99% |
| MINTernet | 100 | 20 | 100% |
| T-Mobile | 100 | 20 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| HughesNet | 100 | 5 | 100% |
| Viasat | 100 | 3 | 100% |
| Viasat Carrier Services | 25 | 3 | 7% |
Broadband Map's availability estimates are based on the census boundaries of Foster City. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Foster City rely primarily on the November 2025 release from the FCC's Broadband Data Collection program (representing Foster City ISPs' availability as of June 2025).