Phone numbers in Clarion, Iowa
Clarion has 5 phone prefixes in area code 515.
Biggest holders: T-Mobile (including Sprint), CenturyLink / Lumen, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 40%
- Local phone company 20%
- Internet / business phone carrier 20%
- Phone company 20%
Every prefix in Clarion
Search the first six digits of a number in this list. If it's here, the number started in Clarion with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 515-385 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 515-532 | CenturyLink / Lumen | Local phone company | – |
| 515-551 | Onvoy | Internet / business phone carrier | 2021 |
| 515-602 | Communications 1 Network | Phone company | – |
| 515-851 | Verizon Wireless | Mobile carrier | – |
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.