Phone numbers in Union City, Tennessee
Union City has 14 phone prefixes in area code 731.
Biggest holders: AT&T Mobility, Verizon Wireless, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 43%
- Local phone company 21%
- Internet / business phone carrier 21%
- Phone company 14%
Every prefix in Union City
Search the first six digits of a number in this list. If it's here, the number started in Union City with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 731-246 | Onvoy | Internet / business phone carrier | – |
| 731-335 | AT&T Mobility | Mobile carrier | 2002 |
| 731-389 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 731-446 | Verizon Wireless | Mobile carrier | 2003 |
| 731-504 | Verizon Wireless | Mobile carrier | – |
| 731-507 | Jackson Energy Authority | Phone company | 2016 |
| 731-592 | Verizon Wireless | Mobile carrier | 2005 |
| 731-599 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 731-698 | Aeneas Communications | Phone company | – |
| 731-796 | AT&T Mobility | Mobile carrier | – |
| 731-884 | AT&T (local phone) | Local phone company | – |
| 731-885 | AT&T (local phone) | Local phone company | – |
| 731-886 | AT&T (local phone) | Local phone company | – |
| 731-991 | 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.