Castle Rock Business Internet
Setting Up Map
Loading Data

Need 11+ lines? Try SuperMobile • Sponsored Need 11+ lines for your business? Try SuperMobile with dedicated network slicing  Sponsored

Get In Touch
Color By:
Fewer
More
Broadband Map receives commissions from partners • Map Info Castle Rock Business Internet
Internet Providers
Available in this area
Residential
Business
Loading providers...
Map Settings
Residential
Business

    Business Internet Providers in Castle Rock

    Castle Rock has two business fiber providers, Quantum Fiber and CenturyLink.

    Residential Business

    Fiber

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Quantum Fiber 8,000 8,000 Moderate
    CenturyLink 2,000 1,000 Moderate

    Cable

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

    DSL

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    CenturyLink 140 40 Moderate

    Fixed Wireless

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Kellin Communications 1,000 220 High
    BAM 1,000 100 High
    Verizon 200 30 High
    Aerux 100 100 High
    Xtream Internet 100 40 High
    T-Mobile 100 20 High
    Rise 100 20 Limited
    AT&T 100 6 High

    Next-Gen Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Starlink 280 30 High

    Old-School Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Viasat 150 4 High
    HughesNet 50 5 High

    Low-Availability Business Internet Options

    Provider TechnologyTech Download (Mbps) Upload (Mbps) AvailabilityCoverage
    Aerux Fiber 10,000 10,000 Limited
    Thrive Fiber 2,000 2,000 Limited
    Xfinity Fiber 2,000 250 Limited
    Zayo Group Fiber 200 100 Limited
    Visionary Fixed WirelessFixed Wireless 200 20 Limited

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

    Data Sourcing

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