Phone numbers in Summerville, South Carolina
Summerville has 25 phone prefixes in area codes 843, 854.
Biggest holders: AT&T (local phone), Windstream (PAETEC), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 4%
- Local phone company 36%
- Internet / business phone carrier 52%
- Phone company 8%
Every prefix in Summerville
Search the first six digits of a number in this list. If it's here, the number started in Summerville with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 843-285 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 843-376 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 843-419 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 843-486 | AT&T (local phone) | Local phone company | 2002 |
| 843-594 | Teleport Communications America Sc | Internet / business phone carrier | 2017 |
| 843-695 | AT&T (local phone) | Local phone company | – |
| 843-771 | Charter / Spectrum | Internet / business phone carrier | – |
| 843-821 | AT&T (local phone) | Local phone company | – |
| 843-832 | AT&T (local phone) | Local phone company | – |
| 843-851 | AT&T (local phone) | Local phone company | – |
| 843-871 | AT&T (local phone) | Local phone company | – |
| 843-873 | AT&T (local phone) | Local phone company | – |
| 843-875 | AT&T (local phone) | Local phone company | – |
| 843-879 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 843-900 | Home Telecom-sc | Phone company | 2010 |
| 843-970 | AT&T (local phone) | Local phone company | 2015 |
| 854-217 | Stratus Networks | Phone company | 2021 |
| 854-220 | Onvoy | Internet / business phone carrier | 2019 |
| 854-264 | Commio | Internet / business phone carrier | 2024 |
| 854-269 | TON80 Communications | Internet / business phone carrier | 2022 |
| 854-273 | Onvoy | Internet / business phone carrier | 2024 |
| 854-296 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 854-300 | Fractel | Internet / business phone carrier | 2019 |
| 854-308 | Onvoy | Internet / business phone carrier | 2026 |
| 854-888 | Onvoy | Internet / business phone carrier | 2015 |
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.