Quantum Fiber is available in Boulder. Get speeds up to 8 Gig • Sponsored Quantum Fiber is available in Boulder. Get speeds up to 8 Gig. Check availability on Quantum Fiber's Website ↗ • Sponsored
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Boulder has 16 internet options – View all▼
Boulder has multiple fiber providers, including Quantum Fiber and CenturyLink. Symmetric speeds of 8,000 Mbps are available in parts of Boulder.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Quantum Fiber | 8,000 | 8,000 | 88% |
| Ayva Networks | 2,500 | 2,500 | 3% |
| Xfinity | 2,000 | 2,000 | 5% |
| CenturyLink | 2,000 | 1,000 | 81% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 2,000 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| CenturyLink | 140 | 100 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Ayva Networks | 2,500 | 2,500 | 100% |
| LiveWireNet | 250 | 100 | 100% |
| Verizon | 300 | 20 | 100% |
| T-Mobile | 100 | 20 | 100% |
| MINTernet | 100 | 20 | 98% |
| AT&T | 100 | 20 | 86% |
| Rise | 50 | 10 | 20% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Viasat | 150 | 3 | 100% |
| HughesNet | 50 | 5 | 100% |
Broadband Map's availability estimates are based on the census boundaries of Boulder. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Boulder rely primarily on the May 2026 release from the FCC's Broadband Data Collection program (representing Boulder ISPs' availability as of December 2025).