Phone numbers in Columbus, Indiana
Columbus has 33 phone prefixes in area codes 812, 930.
Biggest holders: AT&T (local phone), AT&T Mobility, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 36%
- Internet / business phone carrier 27%
- Phone company 3%
Every prefix in Columbus
Search the first six digits of a number in this list. If it's here, the number started in Columbus with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 812-314 | AT&T (local phone) | Local phone company | – |
| 812-341 | AT&T (local phone) | Local phone company | – |
| 812-342 | AT&T (local phone) | Local phone company | – |
| 812-343 | Verizon Wireless | Mobile carrier | – |
| 812-344 | Verizon Wireless | Mobile carrier | – |
| 812-348 | AT&T (local phone) | Local phone company | – |
| 812-350 | Verizon Wireless | Mobile carrier | – |
| 812-371 | AT&T Mobility | Mobile carrier | – |
| 812-372 | AT&T (local phone) | Local phone company | – |
| 812-373 | AT&T (local phone) | Local phone company | – |
| 812-374 | AT&T (local phone) | Local phone company | – |
| 812-375 | AT&T (local phone) | Local phone company | – |
| 812-376 | AT&T (local phone) | Local phone company | – |
| 812-377 | AT&T (local phone) | Local phone company | – |
| 812-378 | AT&T (local phone) | Local phone company | – |
| 812-379 | AT&T (local phone) | Local phone company | – |
| 812-390 | AT&T Mobility | Mobile carrier | 2001 |
| 812-417 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 812-418 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 812-447 | T-Mobile (including Sprint) | Mobile carrier | – |
| 812-552 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 812-565 | Bandwidth | Internet / business phone carrier | 2005 |
| 812-603 | AT&T Mobility | Mobile carrier | 2002 |
| 812-657 | Teleport Communications America | Internet / business phone carrier | 2002 |
| 812-669 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 812-764 | AT&T Mobility | Mobile carrier | – |
| 812-799 | Comcast | Internet / business phone carrier | 2005 |
| 812-900 | MetroPCS (T-Mobile) | Mobile carrier | 2017 |
| 930-220 | Level 3 (Lumen) | Internet / business phone carrier | 2020 |
| 930-232 | Stratus Networks | Phone company | 2021 |
| 930-268 | AT&T Mobility | Mobile carrier | 2023 |
| 930-272 | Nuso | Internet / business phone carrier | 2023 |
| 930-280 | Onvoy | Internet / business phone 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.