3 area codes assigned to Utah · Mountain Time
1 of Utah's area codes share territory with another. Codes in the same row serve the same places, so either can reach a number there — and ten-digit dialling is required throughout.
The remaining code covers their own area: 435.
Utah went from one area code in 1947 to 3 today. A split carves territory off its parent; an overlay sits on top of it, which is why newer codes need ten-digit dialling.
Dates from the NANPA area code report, 09/19/2026.
Utah spans 5 LATAs — the regions a call is routed within before it becomes long-haul.
385
Utah
Mountain Time
Overlay · with 801
5,324 blocks · 20 rate centres
435
Utah
Mountain Time
3,185 blocks · 111 rate centres
801
Utah
Mountain Time
Overlay · with 385
4,633 blocks · 21 rate centres
Utah has more than one area code in most regions. Enter a city to see which codes serve it, or check a specific number instead.
Utah has had 2 area codes activated as an overlay since 2021, sharing territory with an existing code rather than carving out new geography. Local calls in an overlaid region must be dialed with all ten digits. Earlier overlays are not listed here.
See every North American overlayUtah is served by 3 area codes in the North American Numbering Plan (NANP): 385, 435, 801. All Utah numbers are in the Mountain Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.