Phone numbers in Louisa, Kentucky
Louisa has 6 phone prefixes in area code 606.
Biggest holders: Level 3 (Lumen), AT&T Mobility, Appalachian Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 17%
- Internet / business phone carrier 50%
Every prefix in Louisa
Search the first six digits of a number in this list. If it's here, the number started in Louisa with the carrier shown. If it isn't, check the Kentucky page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 606-244 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 606-483 | AT&T Mobility | Mobile carrier | 2002 |
| 606-624 | Appalachian Wireless | Mobile carrier | 2003 |
| 606-638 | AT&T (local phone) | Local phone company | – |
| 606-826 | Level 3 (Lumen) | Internet / business phone carrier | 2018 |
| 606-989 | Onvoy | Internet / business phone 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.