Utah phone numbers and area codes
Utah has 3 area codes and 1,778 assigned prefixes.
Look at a prefix's carrier mix below, or look up a full number on the home page.
- Mobile carrier 33%
- Local phone company 26%
- Internet / business phone carrier 32%
- Paging service 1%
- Phone company 8%
Area codes in Utah
| Code | Area | Prefixes here |
|---|---|---|
| 385 | Utah (Counties of Davis; Morgan; Salt Lake; Utah; and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo) | 494 |
| 435 | Most of Utah outside the Salt Lake City, Ogden, and Provo metropolitan areas in northern Utah | 501 |
| 801 | Utah (Counties of Davis, Morgan, Salt Lake, Utah, and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo) | 783 |
Biggest local calling areas
Numbers are assigned to rate centers. These have the most prefixes in Utah (the number is how many).
Salt Lake City400Provo168Midvale158Ogden123Kaysville113Murray71St. George53Clearfield45Logan45American Fork40Bountiful35Park City32Tooele30Brigham City23Lehi22Cedar City22Pleasant Grove17Spanish Fork16Farmington14Springville14Payson13Heber City13Morgan12Alta10Richfield10Price9Vernal8Nephi8Castle Dale8Kamas8Moab7Beaver7Tremonton5Bearriv City5Salina5Duchesne5Roosevelt5Mnzmcranth4Brian Head4Fillmore4Blanding4Glncnyoncy4Monticello4Coalville4Monroe4Manila4Delta4Manti4Parowan4Panguitch4Kanab4Mtpleasant3Enterprise3Ibapah3Ephraim3Thompson3Monumntvly3Dutch John3Howell3Gardencity3
Carriers in Utah
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| CenturyLink / Lumen | Local phone company | 400 | 22% |
| AT&T Mobility | Mobile carrier | 214 | 12% |
| T-Mobile (including Sprint) | Mobile carrier | 195 | 11% |
| Verizon Wireless | Mobile carrier | 165 | 9% |
| Onvoy | Internet / business phone carrier | 160 | 9% |
| MCImetro (Verizon Business) | Internet / business phone carrier | 85 | 5% |
| Bandwidth | Internet / business phone carrier | 56 | 3% |
| Allstream | Internet / business phone carrier | 54 | 3% |
| Level 3 (Lumen) | Internet / business phone carrier | 48 | 3% |
| Teleport Communications America | Internet / business phone carrier | 47 | 3% |
| Frontier | Local phone company | 28 | 2% |
| Fractel | Internet / business phone carrier | 26 | 1% |
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.