Phone numbers in Clarks Hill, South Carolina
Clarks Hill has 3 phone prefixes in area code 864.
Biggest holders: West Carolina Rural Tel. Coop, South Carolina Telecomm Grp Holdings, Boost / Virgin Mobile. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Phone company 33%
Every prefix in Clarks Hill
Search the first six digits of a number in this list. If it's here, the number started in Clarks Hill with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 864-333 | West Carolina Rural Tel. Coop | Local phone company | – |
| 864-628 | South Carolina Telecomm Grp Holdings | Phone company | 2017 |
| 864-799 | Boost / Virgin Mobile | Mobile carrier | 2023 |
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.