Quantum Fiber is available in Longmont. Get speeds up to 8 Gig • Sponsored Quantum Fiber is available in Longmont. Get speeds up to 8 Gig. Check availability on Quantum Fiber's Website ↗ • Sponsored
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Longmont has 17 internet options – View all▼
Longmont has multiple fiber providers, including NextLight and Quantum Fiber. Symmetric speeds of 10,000 Mbps are available in parts of Longmont.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| NextLight | 10,000 | 10,000 | 99% |
| Quantum Fiber | 8,000 | 8,000 | 25% |
| Xfinity | 2,000 | 2,000 | 5% |
| CenturyLink | 1,000 | 1,000 | 14% |
| Fiber Fast Homes | 1,000 | 1,000 | <0.1% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 2,000 | 99% |
| TDS Telecom | 1,000 | 20 | 11% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| CenturyLink | 140 | 40 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 300 | 20 | 100% |
| T-Mobile | 100 | 20 | 100% |
| Rise | 100 | 20 | 94% |
| MINTernet | 100 | 20 | 82% |
| AT&T | 100 | 20 | 69% |
| Hilltop | 50 | 15 | 37% |
| 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 Longmont. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Longmont rely primarily on the May 2026 release from the FCC's Broadband Data Collection program (representing Longmont ISPs' availability as of December 2025).