Phone numbers in Mill Creek, South Carolina
Mill Creek has 4 phone prefixes in area codes 803, 839.
Biggest holders: Bandwidth, AT&T Enterprises, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 25%
- Internet / business phone carrier 50%
- Phone company 25%
Every prefix in Mill Creek
Search the first six digits of a number in this list. If it's here, the number started in Mill Creek with the carrier shown. If it isn't, check the South Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 803-339 | Bandwidth | Internet / business phone carrier | – |
| 803-525 | AT&T Enterprises | Phone company | 2009 |
| 803-962 | AT&T (local phone) | Local phone company | – |
| 839-277 | 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.