Phone numbers in Gaffney, South Carolina
Gaffney has 17 phone prefixes in area codes 821, 864.
Biggest holders: AT&T (local phone), Onvoy, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 18%
- Local phone company 29%
- Internet / business phone carrier 35%
- Paging service 6%
- Phone company 12%
Every prefix in Gaffney
Search the first six digits of a number in this list. If it's here, the number started in Gaffney with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 821-999 | Onvoy | Internet / business phone carrier | 2025 |
| 864-206 | AT&T (local phone) | Local phone company | – |
| 864-258 | Total Communication Systems | Phone company | – |
| 864-300 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 864-425 | T-Mobile (including Sprint) | Mobile carrier | – |
| 864-480 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-487 | AT&T (local phone) | Local phone company | – |
| 864-488 | AT&T (local phone) | Local phone company | – |
| 864-489 | AT&T (local phone) | Local phone company | – |
| 864-493 | Spok | Paging service | 2001 |
| 864-514 | South Carolina Net | Phone company | 2017 |
| 864-649 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 864-761 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 864-785 | Bandwidth | Internet / business phone carrier | 2022 |
| 864-812 | AT&T Mobility | Mobile carrier | – |
| 864-863 | Onvoy | Internet / business phone carrier | 2020 |
| 864-902 | AT&T (local phone) | Local 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.