Phone numbers in Sigourney, Iowa
Sigourney has 4 phone prefixes in area code 641.
Biggest holders: Verizon Wireless, Local Telephone Data Services, Windstream Iowa Communications, Inc. - North. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 25%
- Phone company 25%
Every prefix in Sigourney
Search the first six digits of a number in this list. If it's here, the number started in Sigourney with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 641-224 | Local Telephone Data Services | Phone company | 2001 |
| 641-541 | Verizon Wireless | Mobile carrier | – |
| 641-622 | Windstream Iowa Communications, Inc. - North | Local phone company | – |
| 641-790 | Verizon Wireless | 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.