Phone numbers in Grand Bay, Alabama
Grand Bay has 5 phone prefixes in area code 251.
Biggest holders: Onvoy, Mcc Telephony Of The South, Boost / Virgin Mobile. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 20%
- Internet / business phone carrier 60%
Every prefix in Grand Bay
Search the first six digits of a number in this list. If it's here, the number started in Grand Bay with the carrier shown. If it isn't, check the Alabama page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 251-290 | Mcc Telephony Of The South | Internet / business phone carrier | 2008 |
| 251-429 | Boost / Virgin Mobile | Mobile carrier | 2023 |
| 251-521 | Onvoy | Internet / business phone carrier | 2021 |
| 251-810 | Onvoy | Internet / business phone carrier | 2020 |
| 251-865 | Brightspeed Of Alabama, LLC - Northern | Local phone company | – |
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.