Phone numbers in Alma, Michigan
Alma has 16 phone prefixes in area code 989.
Biggest holders: Frontier, Level 3 (Lumen), Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 12%
- Local phone company 38%
- Internet / business phone carrier 44%
- Paging service 6%
Every prefix in Alma
Search the first six digits of a number in this list. If it's here, the number started in Alma with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 989-285 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 989-331 | Frontier | Local phone company | 2006 |
| 989-409 | Frontier | Local phone company | 2015 |
| 989-462 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 989-463 | Frontier | Local phone company | – |
| 989-466 | Frontier | Local phone company | – |
| 989-468 | TON80 Communications | Internet / business phone carrier | 2021 |
| 989-533 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 989-576 | AT&T Mobility | Mobile carrier | – |
| 989-620 | T-Mobile (including Sprint) | Mobile carrier | – |
| 989-629 | Interactive Services Network | Internet / business phone carrier | 2002 |
| 989-760 | Frontier | Local phone company | 2001 |
| 989-796 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 989-901 | Onvoy | Internet / business phone carrier | 2021 |
| 989-924 | American Messaging Services | Paging service | – |
| 989-968 | Winn Telecom | 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.