Phone numbers in New Martinsville, West Virginia
New Martinsville has 8 phone prefixes in area codes 304, 681.
Biggest holders: AT&T Mobility, Csc Voice, Fibernet. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 12%
- Internet / business phone carrier 38%
- Phone company 25%
Every prefix in New Martinsville
Search the first six digits of a number in this list. If it's here, the number started in New Martinsville with the carrier shown. If it isn't, check the West Virginia page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 304-398 | Csc Voice | Internet / business phone carrier | – |
| 304-447 | Fibernet | Internet / business phone carrier | – |
| 304-451 | Peerless Network Of West Virginia | Internet / business phone carrier | – |
| 304-455 | Frontier | Local phone company | – |
| 304-510 | Stratuswave Comm LLC Wv | Phone company | – |
| 304-771 | AT&T Mobility | Mobile carrier | 2001 |
| 304-815 | Citynet West Virginia | Phone company | 2002 |
| 681-302 | AT&T Mobility | Mobile carrier | 2010 |
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.