Phone numbers in Fountain Inn, South Carolina
Fountain Inn has 10 phone prefixes in area code 864.
Biggest holders: Windstream (PAETEC), AT&T (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 10%
- Local phone company 20%
- Internet / business phone carrier 70%
Every prefix in Fountain Inn
Search the first six digits of a number in this list. If it's here, the number started in Fountain Inn with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 864-408 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-409 | AT&T (local phone) | Local phone company | – |
| 864-531 | AT&T Mobility | Mobile carrier | 2018 |
| 864-601 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-692 | Onvoy | Internet / business phone carrier | 2021 |
| 864-714 | MCImetro (Verizon Business) | Internet / business phone carrier | 2015 |
| 864-724 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 864-862 | AT&T (local phone) | Local phone company | – |
| 864-864 | Onvoy | Internet / business phone carrier | 2024 |
| 864-966 | TON80 Communications | Internet / business phone carrier | 2022 |
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.