Phone numbers in Winnsboro, South Carolina
Winnsboro has 13 phone prefixes in area codes 803, 839.
Biggest holders: AT&T Mobility, Frontier, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 46%
- Local phone company 23%
- Internet / business phone carrier 23%
- Phone company 8%
Every prefix in Winnsboro
Search the first six digits of a number in this list. If it's here, the number started in Winnsboro with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 803-402 | AT&T Mobility | Mobile carrier | 2008 |
| 803-589 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 803-633 | Frontier | Local phone company | – |
| 803-635 | Frontier | Local phone company | – |
| 803-712 | Frontier | Local phone company | – |
| 803-718 | Verizon Wireless | Mobile carrier | – |
| 803-801 | Verizon Wireless | Mobile carrier | 2013 |
| 803-815 | Fairfield Communications | Phone company | 2003 |
| 839-207 | AT&T Mobility | Mobile carrier | 2021 |
| 839-229 | AT&T Mobility | Mobile carrier | 2022 |
| 839-258 | AT&T Mobility | Mobile carrier | 2023 |
| 839-466 | TON80 Communications | Internet / business phone carrier | 2022 |
| 839-930 | Onvoy | Internet / business phone 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.