Phone numbers in Oldhickory, Tennessee
Oldhickory has 14 phone prefixes in area codes 615, 629.
Biggest holders: Onvoy, Level 3 (Lumen), Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 7%
- Local phone company 14%
- Internet / business phone carrier 71%
- Phone company 7%
Every prefix in Oldhickory
Search the first six digits of a number in this list. If it's here, the number started in Oldhickory with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 615-240 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 615-357 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 615-475 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 615-526 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 615-530 | Onvoy | Internet / business phone carrier | 2006 |
| 615-541 | AT&T (local phone) | Local phone company | – |
| 615-608 | Teleport Communications America | Internet / business phone carrier | – |
| 615-704 | Onvoy | Internet / business phone carrier | – |
| 615-755 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 615-847 | AT&T (local phone) | Local phone company | – |
| 615-894 | AT&T Enterprises | Phone company | 2010 |
| 629-231 | Onvoy | Internet / business phone carrier | 2019 |
| 629-321 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 629-935 | TON80 Communications | Internet / business phone carrier | 2022 |
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.