Phone numbers in Dobson, North Carolina
Dobson has 5 phone prefixes in area codes 336, 743.
Biggest holders: Piedmont Communications Services, Brightspeed Of North Carolina, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 20%
- Internet / business phone carrier 60%
- Phone company 20%
Every prefix in Dobson
Search the first six digits of a number in this list. If it's here, the number started in Dobson with the carrier shown. If it isn't, check the North Carolina page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 336-356 | Piedmont Communications Services | Phone company | 2003 |
| 336-386 | Brightspeed Of North Carolina | Local phone company | – |
| 336-443 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 336-569 | Bandwidth | Internet / business phone carrier | 2020 |
| 743-437 | Onvoy | 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.