Charleston Internet Providers
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Frontier Fiber is available in Charleston. • Sponsored Frontier Fiber is available in Charleston. Check plans and availability ↗  Sponsored

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    Internet Providers in Charleston

    Charleston has two fiber providers, Frontier and Alpha Technologies. Symmetric speeds of 7,000 Mbps are available in parts of Charleston.

    Residential Business

    Fiber

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Frontier 7,000 7,000 88%
    Alpha Technologies 1,000 1,000 20%

    Cable

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Optimum 2,000 200 100%

    DSL

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Frontier 115 7 73%

    Fixed Wireless

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Verizon 300 20 98%
    local2u llc 200 100 20%
    T-Mobile 100 20 99%
    MINTernet 100 20 93%
    AT&T 100 20 93%

    Next-Gen Satellite

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

    Old-School Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Viasat 100 3 100%
    HughesNet 50 5 100%

    Low-Availability Internet Options

    Provider TechnologyTech Download (Mbps) Upload (Mbps) AvailabilityCoverage
    Xfinity Cable 1,200 35 4%
    Shentel Cable 1,000 50 0.2%

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

    Data Sourcing

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