Phone numbers in Mt. Vernon, Ohio
Mt. Vernon has 17 phone prefixes in area code 740.
Biggest holders: Verizon Wireless, Brightspeed Of Northwest Ohio, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 65%
- Local phone company 24%
- Internet / business phone carrier 6%
- Phone company 6%
Every prefix in Mt. Vernon
Search the first six digits of a number in this list. If it's here, the number started in Mt. Vernon with the carrier shown. If it isn't, check the Ohio page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 740-263 | Verizon Wireless | Mobile carrier | 2001 |
| 740-324 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 740-326 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 740-358 | T-Mobile (including Sprint) | Mobile carrier | – |
| 740-390 | AT&T Mobility | Mobile carrier | – |
| 740-392 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 740-393 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 740-397 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 740-398 | Verizon Wireless | Mobile carrier | – |
| 740-399 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 740-462 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 740-485 | Verizon Wireless | Mobile carrier | 2002 |
| 740-501 | Verizon Wireless | Mobile carrier | – |
| 740-504 | Verizon Wireless | Mobile carrier | – |
| 740-507 | Verizon Wireless | Mobile carrier | 2001 |
| 740-627 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 740-830 | Horizon Services | Phone company | 2012 |
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.