South San Francisco Internet Providers
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Xfinity is available in South San Francisco. Call 833-848-2575  Sponsored Xfinity is available in South San Francisco. Check plans and availability or call 833-848-2575  Sponsored

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    Internet Providers in South San Francisco

    South San Francisco has multiple fiber providers, including AT&T and Sonic Telecom. Symmetric speeds of 5,000 Mbps are available in parts of the city.

    Fiber

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    AT&T 5,000 5,000 99%
    Astound 1,500 1,500 12%
    Sonic Telecom 1,000 1,000 57%

    Cable

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Xfinity 2,000 250 100%
    Astound 1,500 50 62%

    DSL

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Sail Internet 1,000 1,000 9%

    Fixed Wireless

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Etheric Networks 250 100 100%
    Unwired Ltd 300 25 38%
    Verizon 300 20 99%
    Sail Internet 200 100 10%
    MINTernet 100 20 100%
    T-Mobile 100 20 100%

    Next-Gen Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Starlink 280 30 100%

    Old-School Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    HughesNet 100 5 100%
    Viasat 100 3 100%

    Low-Availability Internet Options

    Provider TechnologyTech Download (Mbps) Upload (Mbps) AvailabilityCoverage
    Astound DSL/CopperDSL 1,000 10 0.1%
    AT&T Fixed WirelessFixed Wireless 100 20 0.4%

    Broadband Map's availability estimates are based on the census boundaries of South San Francisco. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.


    Data Sourcing

    Broadband Map's listings of internet providers in South San Francisco rely primarily on the November 2025 release from the FCC's Broadband Data Collection program (representing South San Francisco ISPs' availability as of June 2025).