Phone numbers in Spirit Lake, Iowa
Spirit Lake has 6 phone prefixes in area code 712.
Biggest holders: Verizon Wireless, UScellular, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 67%
- Local phone company 17%
- Internet / business phone carrier 17%
Every prefix in Spirit Lake
Search the first six digits of a number in this list. If it's here, the number started in Spirit Lake with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 712-320 | UScellular | Mobile carrier | – |
| 712-330 | Verizon Wireless | Mobile carrier | – |
| 712-331 | AT&T Mobility | Mobile carrier | 2006 |
| 712-336 | CenturyLink / Lumen | Local phone company | – |
| 712-339 | Verizon Wireless | Mobile carrier | – |
| 712-759 | Mcc Telephony Of Iowa | Internet / business phone carrier | 2010 |
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.