Coverage · ZIP 52133
Internet Providers in Castalia, IA (52133)
There are 12 internet providers available in Castalia, IA (ZIP 52133), including Acentek, Northeast Iowa Telephone Company, Nextlink. 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 Castalia, IA (ZIP 52133)
There are 12 residential internet providers available in Castalia, IA (ZIP 52133), including Acentek, Northeast Iowa Telephone Company, Nextlink. 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 |
|---|---|---|---|---|
| Acentek | Fiber | 1 Gbps | 1 Gbps | 71% |
| Northeast Iowa Telephone Company | Fiber | 1 Gbps | 1 Gbps | 3% |
| Nextlink | 5G Home Internet | 500 Mbps | 100 Mbps | 33% |
| US Cellular | 5G Home Internet | 25 Mbps | 3 Mbps | 71% |
| T-Mobile Home Internet | 5G Home Internet | 25 Mbps | 3 Mbps | 27% |
| Northeast Iowa Telephone Company | 5G Home Internet | 10 Mbps | 1 Mbps | 3% |
| GigFire | Fixed Wireless | 150 Mbps | 130 Mbps | 57% |
| Allamakee-Clayton Electric | Fixed Wireless | 25 Mbps | 10 Mbps | 12% |
| Starlink | Satellite | 280 Mbps | 30 Mbps | 100% |
| Viasat | Satellite | 150 Mbps | 3 Mbps | 100% |
| HughesNet | Satellite | 100 Mbps | 5 Mbps | 100% |
| CenturyLink | DSL | — | — | 2% |
Internet in Castalia, IA — common questions
How many internet providers are available in Castalia, IA?
There are 12 internet providers available in Castalia, IA (ZIP 52133), including Acentek, Northeast Iowa Telephone Company, Nextlink. Availability varies by exact address.
What is the fastest internet available in 52133?
Acentek offers the highest advertised download speed in Castalia, IA at up to 1 Gbps. Actual speeds depend on the plan and your address.
How do I check internet availability at my address in Castalia, IA?
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.