Phone numbers in Oak Grove, Tennessee
Oak Grove has 6 phone prefixes in area codes 615, 629.
Biggest holders: UScellular, AT&T Mobility, North Central Tel. Coop. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 83%
- Phone company 17%
Every prefix in Oak Grove
Search the first six digits of a number in this list. If it's here, the number started in Oak Grove with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 615-362 | UScellular | Mobile carrier | – |
| 615-572 | UScellular | Mobile carrier | – |
| 615-723 | AT&T Mobility | Mobile carrier | 2022 |
| 615-888 | North Central Tel. Coop | Phone company | – |
| 615-998 | AT&T Mobility | Mobile carrier | 2023 |
| 629-336 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
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.