CenturyLink / Quantum Fiber internet in Sioux City, IA
CenturyLink / Quantum Fiber reports service to about 86% of residential locations in Sioux City, Iowa, which ranks it #2 of 9 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 Sioux City
| # | Provider | Technology (varies by address) | Locations covered |
|---|---|---|---|
| 1 | Sparklight | Fiber, Cable | 99% |
| 2 | CenturyLink / Quantum Fiber | Fiber, DSL | 86% |
| 3 | Metronet | Fiber | 74% |
| 4 | Verizon | Fiber, Fixed wireless | 51% |
| 5 | T-Mobile Home Internet | Fixed wireless | 49% |
| 6 | AT&T | Fiber, DSL, Fixed wireless | 41% |
| 7 | AMG Technology Investment Group | Fixed wireless | 17% |
| 8 | JAB Wireless | Fixed wireless | 12% |
Share of residential locations in Sioux City where each provider reports service (FCC National Broadband Map, data as of December 31, 2025). See all providers in Sioux City.
CenturyLink / Quantum Fiber vs other providers
What technologies are available in Sioux City?
Fiber is widely available: about 77% of locations in Sioux City can get it. Gigabit-class service (1,000 Mbps down) is reported for about 77% of locations. Fixed wireless home internet is reported for about 77% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Sioux City that providers report they can serve. City-level figures, not your address.
CenturyLink / Quantum Fiber in places near Sioux City
- South Sioux City, NE (86%)
- North Sioux City, SD (50%)
- Vermillion, SD (83%)
- Yankton, SD (82%)
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 Sioux City?
CenturyLink / Quantum Fiber reports service to about 86% of residential locations in Sioux City, per FCC data as of December 31, 2025. That ranks it #2 of 9 providers with meaningful coverage here. Availability depends on your exact address.
What type of internet does CenturyLink / Quantum Fiber offer in Sioux City?
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 Sioux City?
Other providers reporting at least 10% coverage in Sioux City include Sparklight (99%), Metronet (74%), Verizon (51%), T-Mobile Home Internet (49%).
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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