Phone numbers in Beulah, Michigan
Beulah has 7 phone prefixes in area code 231.
Biggest holders: AT&T Mobility, Verizon Wireless, 123.NET. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 43%
- Local phone company 14%
- Internet / business phone carrier 14%
- Phone company 29%
Every prefix in Beulah
Search the first six digits of a number in this list. If it's here, the number started in Beulah with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 231-383 | Verizon Wireless | Mobile carrier | 2003 |
| 231-639 | 123.NET | Phone company | 2002 |
| 231-651 | AT&T Mobility | Mobile carrier | 2002 |
| 231-822 | Interactive Services Network | Internet / business phone carrier | 2001 |
| 231-871 | AT&T Mobility | Mobile carrier | – |
| 231-882 | AT&T (local phone) | Local phone company | – |
| 231-930 | Acd Telecom | Phone company | 2001 |
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.