Phone numbers in Glen Lake, Michigan
Glen Lake has 6 phone prefixes in area code 231.
Biggest holders: Brightspeed Of Michigan, AT&T Mobility, Interactive Services Network. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 50%
- Internet / business phone carrier 17%
Every prefix in Glen Lake
Search the first six digits of a number in this list. If it's here, the number started in Glen Lake with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 231-226 | Interactive Services Network | Internet / business phone carrier | 2004 |
| 231-228 | Brightspeed Of Michigan | Local phone company | – |
| 231-326 | Brightspeed Of Michigan | Local phone company | – |
| 231-334 | Brightspeed Of Michigan | Local phone company | – |
| 231-456 | AT&T Mobility | Mobile carrier | 2024 |
| 231-835 | AT&T Mobility | Mobile carrier | 2002 |
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.