Phone numbers in Hardinsburg, Kentucky
Hardinsburg has 5 phone prefixes in area code 270.
Biggest holders: Onvoy, Brandenburg Telecom, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 20%
- Internet / business phone carrier 40%
- Phone company 20%
Every prefix in Hardinsburg
Search the first six digits of a number in this list. If it's here, the number started in Hardinsburg with the carrier shown. If it isn't, check the Kentucky page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 270-567 | Onvoy | Internet / business phone carrier | – |
| 270-580 | Brandenburg Telecom | Phone company | 2005 |
| 270-617 | AT&T Mobility | Mobile carrier | 2002 |
| 270-756 | AT&T (local phone) | Local phone company | – |
| 270-859 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
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.