Phone numbers in Clinton, Michigan
Clinton has 4 phone prefixes in area code 517.
Biggest holders: TC3 Telecom, Frontier, MetroPCS (T-Mobile). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 25%
- Phone company 50%
Every prefix in Clinton
Search the first six digits of a number in this list. If it's here, the number started in Clinton with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 517-217 | TC3 Telecom | Phone company | – |
| 517-456 | Frontier | Local phone company | – |
| 517-514 | MetroPCS (T-Mobile) | Mobile carrier | 2021 |
| 517-701 | 123.NET | Phone company | 2005 |
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.