Internet Providers in Boulder, Colorado
22 providers report residential internet coverage in Boulder County (the Boulder area). Fiber reaches 58% of census blocks. Coverage below is county-level from federal filings updated — your exact address may differ, so use the address checker.
| Provider | Types | Top speed | Area coverage | |
|---|---|---|---|---|
| Xfinity | Cable, Fiber | 2 Gbps | 84% of blocks | Visit site |
| CenturyLink | DSL, Fiber | 2 Gbps | 74% of blocks | Visit site |
| Verizon | Fixed Wireless | 300 Mbps | 71% of blocks | Visit site |
| T-Mobile | Fixed Wireless | 100 Mbps | 55% of blocks | Visit site |
| LiveWireNet | 5G Home Internet | 250 Mbps | 49% of blocks | |
| AT&T | Fixed Wireless | 100 Mbps | 40% of blocks | Visit site |
| Rise Broadband | Fixed Wireless | 100 Mbps | 40% of blocks | Visit site |
| Ayva Networks | Fiber, Fixed Wireless | 2.5 Gbps | 38% of blocks | |
| NextLight | Fiber | 10 Gbps | 27% of blocks | |
| Quantum Fiber | Fiber | 8 Gbps | 23% of blocks | Visit site |
| HILLTOP BROADBAND | Fixed Wireless | 50 Mbps | 8% of blocks | |
| Intrepid Fiber Networks | Fiber | 2 Gbps | 6% of blocks | |
| Visionary Broadband | Fiber, Fixed Wireless, 5G Home Internet | 1 Gbps | 5% of blocks | |
| Nedernet | Fixed Wireless | 100 Mbps | 5% of blocks | |
| Allo Communications LLC | Fiber | 2.3 Gbps | 4% of blocks | |
| Lyons Communications | Cable, Fiber, Fixed Wireless | 1 Gbps | 3% of blocks | |
| Neteo Inc | Fixed Wireless | 500 Mbps | 1% of blocks | |
| Neteo Inc. | Fixed Wireless | 500 Mbps | 1% of blocks | |
| TDS Telecom | Cable | 1 Gbps | 1% of blocks | |
| Vistabeam | 5G Home Internet | 500 Mbps | 1% of blocks | |
| xBar7 Communications inc | Fiber, Fixed Wireless | 200 Mbps | 1% of blocks | |
| Fiber Fast Homes | Fiber | 1 Gbps | 1% of blocks |
Frequently asked questions
What's the fastest internet in Boulder?
NextLight reports the highest maximum download speed in Boulder County at 10 Gbps. Actual availability varies block by block — check your address above.
Is fiber available in Boulder?
Fiber reaches about 58% of census blocks in Boulder County. The largest fiber footprints belong to Xfinity, CenturyLink, Ayva Networks. Fiber build-out is street-by-street, so neighboring addresses can differ.
How do I find what's actually at MY address?
Use the address checker on our homepage — it matches your address against the federal coverage database and lists every provider reporting service at your census block, free and without giving anyone your phone number.