Internet Providers In Castle Rock

Residential Business

Castle Rock, CO has 20 residential internet options, including multiple fiber providers. Download speeds as fast as 8,000 Mbps are available.

Download and upload speeds are in megabits per second (Mbps). Enter an address to filter by availability.


Fiber

Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
Quantum Fiber 8,000 8,000 52%
CenturyLink 2,000 1,000 44%

Cable

Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
Xfinity 2,000 300 99%

DSL

Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
CenturyLink 140 40 56%

Fixed Wireless

Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
BAM 1,000 100 93%
Kellin Communications 300 50 100%
Verizon 300 20 98%
Aerux 100 100 78%
Xtream Internet 100 40 100%
T-Mobile 100 20 99%
MINTernet 100 20 99%
AT&T 100 20 39%
Rise 100 20 10%

Next-Gen Satellite

Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
Starlink 220 30 100%

Old-School Satellite

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

Low-Availability Internet Options

Provider TechnologyTech Download (Mbps) Upload (Mbps) AvailabilityCoverage
Thrive Fiber 2,000 2,000 <0.1%
Xfinity Fiber 2,000 300 0.1%
Mountain Fixed WirelessFixed Wireless 200 20 3%
Viaero Wireless Fixed WirelessFixed Wireless 25 5 2%

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.


Castle Rock Internet Options Map

Darker hexagons show areas of Castle Rock with more internet options. Select a hexagon to view internet providers in a specific part of Castle Rock.

Castle Rock Internet Map

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Data Sourcing

Broadband Map's listings of internet providers in Castle Rock rely primarily on the May 2025 release from the FCC's Broadband Data Collection program (representing Castle Rock ISPs' availability as of December 2024).