Phone numbers in Marion, Ohio
Marion has 24 phone prefixes in area codes 220, 740.
Biggest holders: Frontier, Verizon Wireless, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 33%
- Internet / business phone carrier 25%
- Phone company 4%
Every prefix in Marion
Search the first six digits of a number in this list. If it's here, the number started in Marion with the carrier shown. If it isn't, check the Ohio page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 220-221 | Onvoy | Internet / business phone carrier | 2021 |
| 220-239 | Onvoy | Internet / business phone carrier | 2022 |
| 220-257 | Onvoy | Internet / business phone carrier | 2024 |
| 740-223 | Frontier | Local phone company | – |
| 740-225 | T-Mobile (including Sprint) | Mobile carrier | – |
| 740-244 | T-Mobile (including Sprint) | Mobile carrier | – |
| 740-251 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 740-262 | Verizon Wireless | Mobile carrier | 2002 |
| 740-341 | AT&T Mobility | Mobile carrier | 2004 |
| 740-360 | Verizon Wireless | Mobile carrier | – |
| 740-361 | Verizon Wireless | Mobile carrier | – |
| 740-375 | Frontier | Local phone company | – |
| 740-382 | Frontier | Local phone company | – |
| 740-383 | Frontier | Local phone company | – |
| 740-386 | Frontier | Local phone company | – |
| 740-387 | Frontier | Local phone company | – |
| 740-389 | Frontier | Local phone company | – |
| 740-396 | AT&T Mobility | Mobile carrier | – |
| 740-692 | Goldstar Communications | Phone company | 2010 |
| 740-725 | Frontier | Local phone company | – |
| 740-736 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 740-751 | Verizon Wireless | Mobile carrier | 2006 |
| 740-802 | T-Mobile (including Sprint) | Mobile carrier | – |
| 740-914 | Charter / Spectrum | Internet / business phone carrier | 2013 |
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.