Phone numbers in Keosauqua, Iowa
Keosauqua has 6 phone prefixes in area code 319.
Biggest holders: T-Mobile (including Sprint), Van Buren Tel, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 83%
- Phone company 17%
Every prefix in Keosauqua
Search the first six digits of a number in this list. If it's here, the number started in Keosauqua with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 319-280 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 319-288 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 319-293 | Van Buren Tel | Phone company | – |
| 319-414 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 319-508 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 319-677 | Verizon Wireless | Mobile carrier | 2006 |
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.