Phone numbers in Grayling, Michigan
Grayling has 9 phone prefixes in area code 989.
Biggest holders: Frontier, Verizon Wireless, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 56%
- Local phone company 33%
- Paging service 11%
Every prefix in Grayling
Search the first six digits of a number in this list. If it's here, the number started in Grayling with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 989-290 | Verizon Wireless | Mobile carrier | 2018 |
| 989-344 | Frontier | Local phone company | – |
| 989-348 | Frontier | Local phone company | – |
| 989-390 | Verizon Wireless | Mobile carrier | 2002 |
| 989-478 | American Messaging Services | Paging service | – |
| 989-710 | T-Mobile (including Sprint) | Mobile carrier | – |
| 989-745 | Frontier | Local phone company | 2001 |
| 989-889 | AT&T Mobility | Mobile carrier | – |
| 989-915 | T-Mobile (including Sprint) | Mobile carrier | 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.