About Area Code 801
- Region Code
- 801
- City
- Salt Lake City
- State
- Utah
- Population
- 2,481,834
- Largest City
- Salt Lake City
- Neighboring Codes
- 435 (St George, Utah)
- Time Zone
- Mountain Time
Utah
(801) Area Code 801 — Salt Lake City, Utah
801 Area Code – Salt Lake City, Utah: Location, Time Zone & History
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Map of Area Code 801
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History & Cultural Notes
Salt Lake City and the Wasatch Front carry area code 801, one of the original 86 codes AT&T handed out across North America in October 1947, when it covered every county in Utah. That statewide reach lasted five decades until a 1997 split pushed the state's other 24 counties into the new 435, effective September 21, 1997, leaving 801 concentrated on Davis, Morgan, Salt Lake, Utah, and Weber counties.
Continued growth along the corridor forced the next step: the 385 overlay entered service June 1, 2008, after conservation measures projected 801 would run out of numbers by mid-2008, and ten-digit dialing became mandatory a year later. The Wasatch Front is now widely branded "Silicon Slopes," a tech corridor that sits alongside finance, healthcare, and outdoor recreation industries. Salt Lake City hosted the 2002 Winter Olympics and is slated to host them again in 2034, a milestone locals tie closely to the region's identity.
Ogden, Provo, Sandy, West Jordan, and Layton round out the cities served, together with Salt Lake City forming a corridor of roughly 2.48 million people across the five counties that make up the 801/385 complex.