Phone numbers in Sumter, South Carolina
Sumter has 23 phone prefixes in area codes 803, 839.
Biggest holders: Frontier, Bandwidth, Ftc Diversified Services. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 26%
- Local phone company 30%
- Internet / business phone carrier 30%
- Phone company 13%
Every prefix in Sumter
Search the first six digits of a number in this list. If it's here, the number started in Sumter with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 803-305 | Bandwidth | Internet / business phone carrier | 2012 |
| 803-418 | Frontier | Local phone company | – |
| 803-436 | Frontier | Local phone company | – |
| 803-464 | AT&T Mobility | Mobile carrier | – |
| 803-720 | MetroPCS (T-Mobile) | Mobile carrier | 2003 |
| 803-757 | Bandwidth | Internet / business phone carrier | 2014 |
| 803-773 | Frontier | Local phone company | – |
| 803-774 | Ftc Diversified Services | Phone company | – |
| 803-775 | Frontier | Local phone company | – |
| 803-778 | Frontier | Local phone company | – |
| 803-795 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 803-840 | Verizon Wireless | Mobile carrier | – |
| 803-847 | Verizon Wireless | Mobile carrier | – |
| 803-848 | Bandwidth | Internet / business phone carrier | 2016 |
| 803-883 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 803-885 | Ftc Diversified Services | Phone company | 2011 |
| 803-895 | Ftc Diversified Services | Phone company | – |
| 803-919 | AT&T Mobility | Mobile carrier | 2020 |
| 803-934 | Frontier | Local phone company | – |
| 803-938 | Frontier | Local phone company | – |
| 839-287 | Verizon Wireless | Mobile carrier | 2024 |
| 839-333 | Fractel | Internet / business phone carrier | 2020 |
| 839-867 | Commio | 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.