Phone numbers in Thayer, Missouri
Thayer has 3 phone prefixes in area code 417.
Biggest holders: Brightspeed Of Missouri, UScellular, Rystec. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Phone company 33%
Every prefix in Thayer
Search the first six digits of a number in this list. If it's here, the number started in Thayer with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 417-264 | Brightspeed Of Missouri | Local phone company | – |
| 417-280 | UScellular | Mobile carrier | 2003 |
| 417-821 | Rystec | Phone company | 2004 |
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.