Phone numbers in Mt. Vernon, Illinois
Mt. Vernon has 15 phone prefixes in area codes 618, 730.
Biggest holders: AT&T (local phone), T-Mobile (including Sprint), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 53%
- Local phone company 27%
- Internet / business phone carrier 13%
- Phone company 7%
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 Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 618-204 | T-Mobile (including Sprint) | Mobile carrier | – |
| 618-214 | Verizon Wireless | Mobile carrier | – |
| 618-241 | AT&T (local phone) | Local phone company | – |
| 618-242 | AT&T (local phone) | Local phone company | – |
| 618-244 | AT&T (local phone) | Local phone company | – |
| 618-246 | AT&T (local phone) | Local phone company | – |
| 618-315 | AT&T Mobility | Mobile carrier | – |
| 618-316 | T-Mobile (including Sprint) | Mobile carrier | – |
| 618-417 | MetroPCS (T-Mobile) | Mobile carrier | 2017 |
| 618-472 | AT&T Mobility | Mobile carrier | 2010 |
| 618-731 | Teleport Communications America | Internet / business phone carrier | 2007 |
| 618-809 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 618-816 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 618-899 | Mcc Network Services | Phone company | 2007 |
| 730-239 | AT&T Mobility | Mobile carrier | 2024 |
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.