Coverage · ZIP 80435
Internet Providers in Keystone, CO (80435)
There are 11 internet providers available in Keystone, CO (ZIP 80435), including CenturyLink Fiber, Quantum Fiber, Xfinity. 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 Keystone, CO (ZIP 80435)
There are 11 residential internet providers available in Keystone, CO (ZIP 80435), including CenturyLink Fiber, Quantum Fiber, Xfinity. 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 |
|---|---|---|---|---|
| CenturyLink Fiber | Fiber | 1 Gbps | 1 Gbps | 1% |
| Quantum Fiber | Fiber | 940 Mbps | 940 Mbps | 1% |
| Xfinity | Cable | 1.2 Gbps | 35 Mbps | 60% |
| Verizon 5G Home | 5G Home Internet | 300 Mbps | 30 Mbps | 41% |
| AT&T Internet Air | 5G Home Internet | 100 Mbps | 20 Mbps | 54% |
| T-Mobile Home Internet | 5G Home Internet | 100 Mbps | 20 Mbps | 48% |
| Arbor Mesh Internet | Fixed Wireless | 1 Gbps | 1 Gbps | 3% |
| Starlink | Satellite | 280 Mbps | 30 Mbps | 100% |
| Viasat | Satellite | 150 Mbps | 3 Mbps | 100% |
| HughesNet | Satellite | 100 Mbps | 5 Mbps | 100% |
| CenturyLink | DSL | 80 Mbps | 10 Mbps | 57% |
Internet in Keystone, CO — common questions
How many internet providers are available in Keystone, CO?
There are 11 internet providers available in Keystone, CO (ZIP 80435), including CenturyLink Fiber, Quantum Fiber, Xfinity. Availability varies by exact address.
What is the fastest internet available in 80435?
Xfinity offers the highest advertised download speed in Keystone, CO at up to 1.2 Gbps. Actual speeds depend on the plan and your address.
How do I check internet availability at my address in Keystone, 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.