Phone numbers in Isle of Palms, South Carolina
Isle of Palms has 7 phone prefixes in area codes 843, 854.
Biggest holders: Windstream (PAETEC), Onvoy, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 14%
- Internet / business phone carrier 86%
Every prefix in Isle of Palms
Search the first six digits of a number in this list. If it's here, the number started in Isle of Palms with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 843-242 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 843-256 | Windstream (PAETEC) | Internet / business phone carrier | 2004 |
| 843-885 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 843-886 | AT&T (local phone) | Local phone company | – |
| 843-994 | Peerless Network Of South Carolina | Internet / business phone carrier | 2019 |
| 854-777 | Onvoy | Internet / business phone carrier | 2015 |
| 854-864 | Onvoy | Internet / business phone carrier | 2021 |
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.