Phone numbers in Wilmington, Ohio
Wilmington has 18 phone prefixes in area codes 326, 937.
Biggest holders: Frontier, Level 3 (Lumen), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Internet / business phone carrier 28%
- Phone company 6%
Every prefix in Wilmington
Search the first six digits of a number in this list. If it's here, the number started in Wilmington with the carrier shown. If it isn't, check the Ohio page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 326-237 | Waddell Solutions Group | Phone company | 2024 |
| 937-218 | AT&T Mobility | Mobile carrier | – |
| 937-283 | Frontier | Local phone company | – |
| 937-302 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 937-366 | Frontier | Local phone company | 2001 |
| 937-382 | Frontier | Local phone company | – |
| 937-383 | Frontier | Local phone company | – |
| 937-481 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 937-527 | T-Mobile (including Sprint) | Mobile carrier | – |
| 937-556 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 937-566 | Peerless Network Of Ohio | Internet / business phone carrier | 2002 |
| 937-571 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 937-655 | Frontier | Local phone company | – |
| 937-725 | Verizon Wireless | Mobile carrier | – |
| 937-728 | Verizon Wireless | Mobile carrier | 2001 |
| 937-805 | Charter / Spectrum | Internet / business phone carrier | 2013 |
| 937-944 | AT&T Mobility | Mobile carrier | 2006 |
| 937-992 | Frontier | Local phone company | 2016 |
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.