Phone numbers in Greenbrier, Arkansas
Greenbrier has 8 phone prefixes in area code 501.
Biggest holders: Windstream Arkansas, T-Mobile (including Sprint), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 50%
- Internet / business phone carrier 25%
Every prefix in Greenbrier
Search the first six digits of a number in this list. If it's here, the number started in Greenbrier with the carrier shown. If it isn't, check the Arkansas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 501-277 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 501-287 | Windstream Arkansas | Local phone company | 2008 |
| 501-314 | AT&T Mobility | Mobile carrier | 2008 |
| 501-402 | Windstream Arkansas | Local phone company | 2011 |
| 501-460 | Onvoy | Internet / business phone carrier | 2021 |
| 501-581 | Windstream Arkansas | Local phone company | – |
| 501-679 | Windstream Arkansas | Local phone company | – |
| 501-714 | Twilio | Internet / business phone carrier | 2024 |
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.