Phone numbers in Sloan, Iowa
Sloan has 3 phone prefixes in area code 712.
Biggest holders: Northwest Iowa Telephone, Imon Communications. This is the local calling area (rate center) where those prefixes were first assigned.
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Every prefix in Sloan
Search the first six digits of a number in this list. If it's here, the number started in Sloan with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 712-421 | Northwest Iowa Telephone | Phone company | 2001 |
| 712-428 | Northwest Iowa Telephone | Phone company | – |
| 712-429 | Imon Communications | Phone company | 2006 |
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.