Phone numbers in Columbia, Tennessee
Columbia has 32 phone prefixes in area code 931.
Biggest holders: AT&T (local phone), AT&T Mobility, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 22%
- Internet / business phone carrier 38%
- Paging service 3%
Every prefix in Columbia
Search the first six digits of a number in this list. If it's here, the number started in Columbia with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 931-215 | AT&T Mobility | Mobile carrier | – |
| 931-223 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 931-286 | AT&T Mobility | Mobile carrier | – |
| 931-328 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 931-334 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 931-350 | Bandwidth | Internet / business phone carrier | 2021 |
| 931-353 | Spok | Paging service | – |
| 931-374 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 931-375 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 931-380 | AT&T (local phone) | Local phone company | – |
| 931-381 | AT&T (local phone) | Local phone company | – |
| 931-384 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 931-388 | AT&T (local phone) | Local phone company | – |
| 931-398 | AT&T Mobility | Mobile carrier | – |
| 931-416 | AT&T Mobility | Mobile carrier | 2023 |
| 931-446 | AT&T Mobility | Mobile carrier | – |
| 931-460 | Onvoy | Internet / business phone carrier | 2025 |
| 931-483 | Onvoy | Internet / business phone carrier | 2026 |
| 931-490 | AT&T (local phone) | Local phone company | – |
| 931-505 | T-Mobile (including Sprint) | Mobile carrier | – |
| 931-540 | AT&T (local phone) | Local phone company | – |
| 931-548 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 931-560 | AT&T (local phone) | Local phone company | – |
| 931-626 | AT&T Mobility | Mobile carrier | – |
| 931-698 | Verizon Wireless | Mobile carrier | – |
| 931-777 | Fractel | Internet / business phone carrier | 2019 |
| 931-797 | Verizon Wireless | Mobile carrier | – |
| 931-840 | AT&T (local phone) | Local phone company | – |
| 931-901 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 931-922 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 931-981 | Teleport Communications America | Internet / business phone carrier | 2008 |
| 931-982 | Verizon Wireless | Mobile carrier | 2006 |
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.