CenturyLink / Quantum Fiber internet in Thornton, CO
CenturyLink / Quantum Fiber reports service to about 92% of residential locations in Thornton, Colorado, which ranks it #2 of 10 providers with meaningful coverage. CenturyLink and Quantum Fiber are Lumen's consumer internet brands. They offer DSL in many areas and fiber (branded Quantum Fiber) where it has been built out.
How CenturyLink / Quantum Fiber compares in Thornton
| # | Provider | Technology (varies by address) | Locations covered |
|---|---|---|---|
| 1 | Xfinity | Cable | 99%+ |
| 2 | CenturyLink / Quantum Fiber | Fiber, DSL | 92% |
| 3 | JAB Wireless | Fixed wireless | 80% |
| 4 | T-Mobile Home Internet | Fixed wireless | 65% |
| 5 | Verizon | Fiber, Fixed wireless | 62% |
| 6 | AT&T | Fiber, DSL, Fixed wireless | 40% |
| 7 | BIF IV Intrepid HoldCo | Fiber | 10% |
| 8 | Ting Fiber | Fiber | 7% |
Share of residential locations in Thornton where each provider reports service (FCC National Broadband Map, data as of December 31, 2025). See all providers in Thornton.
CenturyLink / Quantum Fiber vs other providers
What technologies are available in Thornton?
Fiber reaches about 34% of locations in Thornton, so it is available in parts of the area but not everywhere. Gigabit-class service (1,000 Mbps down) is reported for about 93% of locations. DSL is still reported for about 57% of locations, which can be a fallback where fiber and cable do not reach. Fixed wireless home internet is reported for about 97% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Thornton that providers report they can serve. City-level figures, not your address.
CenturyLink / Quantum Fiber in places near Thornton
- Northglenn, CO (96%)
- Federal Heights, CO (96%)
- Welby, CO (94%)
- Broomfield, CO (94%)
- Sherrelwood, CO (95%)
- Westminster, CO (94%)
- Commerce City, CO (92%)
- Brighton, CO (92%)
Plans and pricing
Plan prices and promotions change often and vary by address, so we do not list them. See CenturyLink / Quantum Fiber's current offers at your address with its availability checker.
Frequently asked questions
Is CenturyLink / Quantum Fiber available in Thornton?
CenturyLink / Quantum Fiber reports service to about 92% of residential locations in Thornton, per FCC data as of December 31, 2025. That ranks it #2 of 10 providers with meaningful coverage here. Availability depends on your exact address.
What type of internet does CenturyLink / Quantum Fiber offer in Thornton?
CenturyLink / Quantum Fiber offers fiber, dsl service across its footprint. The FCC summary does not say which technology reaches each address, so check your address with the provider.
Who are the main CenturyLink / Quantum Fiber competitors in Thornton?
Other providers reporting at least 10% coverage in Thornton include Xfinity (100%), JAB Wireless (80%), T-Mobile Home Internet (65%), Verizon (62%).
How do I check CenturyLink / Quantum Fiber availability at my address?
Use CenturyLink / Quantum Fiber's own address checker, or enter your ZIP code here to compare all providers for your area.
Compare all providers for your ZIP code
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