Phone numbers in Sioux Center, Iowa
Sioux Center has 4 phone prefixes in area code 712.
Biggest holders: AT&T Mobility, Verizon Wireless, Mutual Tel. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 75%
- Phone company 25%
Every prefix in Sioux Center
Search the first six digits of a number in this list. If it's here, the number started in Sioux Center with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 712-441 | AT&T Mobility | Mobile carrier | – |
| 712-449 | AT&T Mobility | Mobile carrier | – |
| 712-463 | Verizon Wireless | Mobile carrier | 2007 |
| 712-722 | Mutual Tel | 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.