Phone numbers in Harold, Kentucky
Harold has 4 phone prefixes in area code 606.
Biggest holders: Coalfields Tel, Fractel, Appalachian Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Internet / business phone carrier 25%
- Phone company 50%
Every prefix in Harold
Search the first six digits of a number in this list. If it's here, the number started in Harold with the carrier shown. If it isn't, check the Kentucky page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 606-345 | Fractel | Internet / business phone carrier | 2020 |
| 606-477 | Appalachian Wireless | Mobile carrier | – |
| 606-478 | Coalfields Tel | Phone company | – |
| 606-479 | Coalfields Tel | Phone company | – |
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.