Internet Providers In Castle Rock
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.
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).
