Phone numbers in St. Ansgar, Iowa
St. Ansgar has 3 phone prefixes in area code 641.
Biggest holders: Windstream Iowa Communications, Inc. - North, Omnitel Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 100%
Every prefix in St. Ansgar
Search the first six digits of a number in this list. If it's here, the number started in St. Ansgar with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 641-599 | Windstream Iowa Communications, Inc. - North | Local phone company | 2015 |
| 641-713 | Omnitel Communications | Local phone company | – |
| 641-736 | Windstream Iowa Communications, Inc. - North | Local phone company | – |
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.