Coverage · ZIP 80303
Internet Providers in Boulder, CO (80303)
There are 14 internet providers available in Boulder, CO (ZIP 80303), including Quantum Fiber, Xfinity Fiber, CenturyLink Fiber. Compare each provider below by technology, maximum advertised speed, and area coverage, then call (833) 261-0564 for help choosing a plan. Coverage data is sourced from the FCC National Broadband Map.
Internet providers in Boulder, CO (ZIP 80303)
There are 14 residential internet providers available in Boulder, CO (ZIP 80303), including Quantum Fiber, Xfinity Fiber, CenturyLink Fiber. The table below lists each provider with its technology type, maximum advertised speeds, and area coverage, sourced from the FCC National Broadband Map.
| Provider | Technology | Max download | Max upload | Area coverage |
|---|---|---|---|---|
| Quantum Fiber | Fiber | 2 Gbps | 1 Gbps | 10% |
| Xfinity Fiber | Fiber | 1.2 Gbps | 1 Gbps | 2% |
| CenturyLink Fiber | Fiber | 1 Gbps | 1 Gbps | 9% |
| Xfinity | Cable | 2 Gbps | 2 Gbps | 71% |
| Verizon 5G Home | 5G Home Internet | 300 Mbps | 30 Mbps | 54% |
| T-Mobile Home Internet | 5G Home Internet | 100 Mbps | 20 Mbps | 69% |
| AT&T Internet Air | 5G Home Internet | 100 Mbps | 20 Mbps | 60% |
| Ayva Networks | Fixed Wireless | 1 Gbps | 1 Gbps | 72% |
| Rise Broadband | Fixed Wireless | 100 Mbps | 20 Mbps | 7% |
| HILLTOP BROADBAND | Fixed Wireless | 50 Mbps | 15 Mbps | 1% |
| Starlink | Satellite | 280 Mbps | 30 Mbps | 100% |
| Viasat | Satellite | 150 Mbps | 3 Mbps | 100% |
| HughesNet | Satellite | 100 Mbps | 5 Mbps | 100% |
| CenturyLink | DSL | 140 Mbps | 40 Mbps | 59% |
Internet in Boulder, CO — common questions
How many internet providers are available in Boulder, CO?
There are 14 internet providers available in Boulder, CO (ZIP 80303), including Quantum Fiber, Xfinity Fiber, CenturyLink Fiber. Availability varies by exact address.
What is the fastest internet available in 80303?
Quantum Fiber offers the highest advertised download speed in Boulder, CO at up to 2 Gbps. Actual speeds depend on the plan and your address.
How do I check internet availability at my address in Boulder, CO?
Enter your ZIP code on Ziatan to see every provider serving your block, then call (833) 261-0564 for help comparing plans and pricing — free, with no signup required.