Phone numbers in Martinsville, Indiana
Martinsville has 15 phone prefixes in area code 765.
Biggest holders: AT&T Mobility, AT&T (local phone), Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 53%
- Local phone company 20%
- Internet / business phone carrier 27%
Every prefix in Martinsville
Search the first six digits of a number in this list. If it's here, the number started in Martinsville with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 765-315 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 765-318 | AT&T Mobility | Mobile carrier | 2002 |
| 765-341 | AT&T Mobility | Mobile carrier | 2001 |
| 765-342 | AT&T (local phone) | Local phone company | – |
| 765-343 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 765-346 | Verizon Wireless | Mobile carrier | – |
| 765-349 | AT&T (local phone) | Local phone company | – |
| 765-352 | AT&T (local phone) | Local phone company | – |
| 765-516 | Verizon Wireless | Mobile carrier | – |
| 765-558 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 765-792 | T-Mobile (including Sprint) | Mobile carrier | – |
| 765-813 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 765-823 | Verizon Wireless | Mobile carrier | 2023 |
| 765-877 | Onvoy | Internet / business phone carrier | 2026 |
| 765-913 | AT&T Mobility | Mobile carrier | – |
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.