Phone numbers in Lyman, Wyoming
Lyman has 3 phone prefixes in area code 307.
Biggest holders: AT&T Mobility, Uintah Basin Electronic Telecommunications, Union Tel. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Phone company 67%
Every prefix in Lyman
Search the first six digits of a number in this list. If it's here, the number started in Lyman with the carrier shown. If it isn't, check the Wyoming page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 307-408 | AT&T Mobility | Mobile carrier | 2021 |
| 307-499 | Uintah Basin Electronic Telecommunications | Phone company | 2026 |
| 307-787 | Union Tel | 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.