CenturyLink / Quantum Fiber internet in Seattle, WA
CenturyLink / Quantum Fiber reports service to about 78% of residential locations in Seattle, Washington, which ranks it #3 of 7 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 Seattle
| # | Provider | Technology (varies by address) | Locations covered |
|---|---|---|---|
| 1 | Xfinity | Cable | 96% |
| 2 | T-Mobile Home Internet | Fixed wireless | 84% |
| 3 | CenturyLink / Quantum Fiber | Fiber, DSL | 78% |
| 4 | Verizon | Fiber, Fixed wireless | 77% |
| 5 | AT&T | Fiber, DSL, Fixed wireless | 66% |
| 6 | Astound Broadband | Fiber, Cable | 43% |
| 7 | Google Fiber | Fiber | 6% |
Share of residential locations in Seattle where each provider reports service (FCC National Broadband Map, data as of December 31, 2025). See all providers in Seattle.
CenturyLink / Quantum Fiber vs other providers
What technologies are available in Seattle?
Fiber is widely available: about 77% of locations in Seattle can get it. Gigabit-class service (1,000 Mbps down) is reported for about 96% of locations. Fixed wireless home internet is reported for about 94% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Seattle that providers report they can serve. City-level figures, not your address.
CenturyLink / Quantum Fiber in places near Seattle
- Mercer Island, WA (44%)
- Bainbridge Island, WA (92%)
- White Center, WA (84%)
- Bellevue, WA (62%)
- Shoreline, WA (44%)
- Burien, WA (84%)
- Bryn Mawr-Skyway, WA (83%)
- Lake Forest Park, WA (61%)
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 Seattle?
CenturyLink / Quantum Fiber reports service to about 78% of residential locations in Seattle, per FCC data as of December 31, 2025. That ranks it #3 of 7 providers with meaningful coverage here. Availability depends on your exact address.
What type of internet does CenturyLink / Quantum Fiber offer in Seattle?
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 Seattle?
Other providers reporting at least 10% coverage in Seattle include Xfinity (96%), T-Mobile Home Internet (84%), Verizon (77%), AT&T (66%).
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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