Phone numbers in Louisville, Georgia
Louisville has 6 phone prefixes in area code 478.
Biggest holders: Bandwidth, AT&T Enterprises, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 17%
- Local phone company 17%
- Internet / business phone carrier 50%
- Phone company 17%
Every prefix in Louisville
Search the first six digits of a number in this list. If it's here, the number started in Louisville with the carrier shown. If it isn't, check the Georgia page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 478-241 | Bandwidth | Internet / business phone carrier | 2018 |
| 478-253 | AT&T Enterprises | Phone company | 2013 |
| 478-373 | Onvoy | Internet / business phone carrier | 2023 |
| 478-377 | AT&T Mobility | Mobile carrier | 2003 |
| 478-625 | AT&T (local phone) | Local phone company | – |
| 478-900 | Terra Nova Telecom | Internet / business phone carrier | 2019 |
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.