Area code 435: where it is and who calls from it
Area code 435 is in Utah.
Most of Utah outside the Salt Lake City, Ogden, and Provo metropolitan areas in northern Utah
| Where | Utah |
|---|---|
| Time zone | Mountain Time ยท local time |
| In service since | 1997 |
| Overlay | No |
| Prefixes assigned | 501 of 792 possible (63%) |
Where 435 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 435, with how many prefixes each has.
Plus 50 smaller rate centers.
Who holds 435 numbers
- Mobile carrier 33%
- Local phone company 22%
- Internet / business phone carrier 26%
- Phone company 20%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| Verizon Wireless | Mobile carrier | 63 | 13% |
| CenturyLink / Lumen | Local phone company | 59 | 12% |
| AT&T Mobility | Mobile carrier | 55 | 11% |
| Onvoy | Internet / business phone carrier | 44 | 9% |
| T-Mobile (including Sprint) | Mobile carrier | 41 | 8% |
| Frontier | Local phone company | 28 | 6% |
| South Central Utah Tel. Assn | Phone company | 24 | 5% |
| Level 3 (Lumen) | Internet / business phone carrier | 23 | 5% |
| Beehive Telephone Company, Inc. (utah) | Local phone company | 13 | 3% |
| Strata Networks | Phone company | 13 | 3% |
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.
States served: Utah.
Other area codes in Utah
Got a call from 435?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 435 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.