Phone numbers in Simpsonville, South Carolina
Simpsonville has 15 phone prefixes in area codes 821, 864.
Biggest holders: Frontier, Onvoy, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 13%
- Local phone company 33%
- Internet / business phone carrier 53%
Every prefix in Simpsonville
Search the first six digits of a number in this list. If it's here, the number started in Simpsonville with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 821-222 | Onvoy | Internet / business phone carrier | 2025 |
| 821-997 | Verizon Wireless | Mobile carrier | 2026 |
| 864-228 | Frontier | Local phone company | – |
| 864-399 | Verizon Wireless | Mobile carrier | 2002 |
| 864-432 | Frontier | Local phone company | 2017 |
| 864-636 | Onvoy | Internet / business phone carrier | 2024 |
| 864-665 | MCImetro (Verizon Business) | Internet / business phone carrier | 2022 |
| 864-688 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 864-757 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 864-881 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 864-894 | Onvoy | Internet / business phone carrier | 2020 |
| 864-960 | Onvoy | Internet / business phone carrier | 2023 |
| 864-962 | Frontier | Local phone company | – |
| 864-963 | Frontier | Local phone company | – |
| 864-967 | Frontier | 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.