Phone numbers in Wall Lake, Iowa
Wall Lake has 3 phone prefixes in area code 712.
Biggest holders: T-Mobile (including Sprint), Corn Belt Tel. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 67%
- Phone company 33%
Every prefix in Wall Lake
Search the first six digits of a number in this list. If it's here, the number started in Wall Lake with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 712-664 | Corn Belt Tel | Phone company | – |
| 712-699 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 712-797 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
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.