Phone numbers in Keokuk, Iowa
Keokuk has 9 phone prefixes in area code 319.
Biggest holders: CenturyLink / Lumen, Local Telephone Data Services, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 44%
- Local phone company 22%
- Internet / business phone carrier 22%
- Phone company 11%
Every prefix in Keokuk
Search the first six digits of a number in this list. If it's here, the number started in Keokuk with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 319-313 | Local Telephone Data Services | Phone company | – |
| 319-473 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 319-520 | Verizon Wireless | Mobile carrier | – |
| 319-524 | CenturyLink / Lumen | Local phone company | – |
| 319-526 | CenturyLink / Lumen | Local phone company | – |
| 319-670 | AT&T Mobility | Mobile carrier | 2001 |
| 319-732 | Fractel | Internet / business phone carrier | 2019 |
| 319-767 | TON80 Communications | Internet / business phone carrier | 2022 |
| 319-795 | UScellular | Mobile carrier | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.