San Mateo Internet Providers
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AT&T Fiber is available in San Mateo. Get speeds up to 5 Gig • Sponsored AT&T Fiber is available in San Mateo. Get speeds up to 5 Gig. Check availability on AT&T's Website ↗  Sponsored

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    Internet Providers in San Mateo

    San Mateo has multiple fiber providers, including AT&T and Sonic Telecom. Symmetric speeds of 10,000 Mbps are available in parts of San Mateo.

    Residential Business

    Fiber

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Sonic Telecom 10,000 10,000 70%
    AT&T 5,000 5,000 100%
    Xfinity 2,000 2,000 12%

    Cable

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Xfinity 2,000 250 100%

    DSL

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Sail Internet 1,000 1,000 5%
    AT&T 100 20 100%

    Fixed Wireless

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    GeoLinks 1,000 1,000 88%
    Verizon 1,000 75 100%
    Etheric Networks 250 100 100%
    Unwired Ltd 300 25 39%
    T-Mobile 100 20 100%
    MINTernet 100 20 99%
    AT&T 100 20 99%

    Next-Gen Satellite

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

    Old-School Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Viasat 150 3 100%
    HughesNet 100 5 100%

    Low-Availability Internet Options

    Provider TechnologyTech Download (Mbps) Upload (Mbps) AvailabilityCoverage
    Etheric Networks Fiber 25,000 25,000 4%
    Sail Internet Fixed WirelessFixed Wireless 200 100 3%

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

    Data Sourcing

    Broadband Map's listings of internet providers in San Mateo rely primarily on the May 2026 release from the FCC's Broadband Data Collection program (representing San Mateo ISPs' availability as of December 2025).