Phone numbers in Coalville, Utah
Coalville has 4 phone prefixes in area code 435.
Biggest holders: Verizon Wireless, All West Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 75%
- Phone company 25%
Every prefix in Coalville
Search the first six digits of a number in this list. If it's here, the number started in Coalville with the carrier shown. If it isn't, check the Utah page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 435-336 | All West Communications | Phone company | 2001 |
| 435-350 | Verizon Wireless | Mobile carrier | 2023 |
| 435-358 | Verizon Wireless | Mobile carrier | 2023 |
| 435-400 | Verizon Wireless | Mobile carrier | 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.