|Phone number :||+18016513721 or 8016513721|
|NPA (Numbering Plan Area (NPA) Code. An NPA, also known as a telephone area code, is the first three digits of a 10-digit North American Numbering Plan (NANP) telephone number) :||801|
|NXX (Central Office Code (COC). The COC, commonly called the telephone exchange or prefix, is the second three digits (NXX) of a 10-digit NANP telephone number.) :||651|
|Name of the Serving Wire Center, also known as Central Office, identified by the geographical location:||Salt Lake City|
|City :||Salt Lake City|
|County :||Salt Lake|
|State :||UT (Utah)|
|ZIP Code :||84009, 84054, 84081, 84101|
|FIPS (County, county equivalent or census division code) :||49035|
|CBSA (Metropolitan statistical area (code) the Rate Center, Rate Exchange Area, or locality is located in) :||41620|
|Land area in square miles :||742|
|County, county equivalent population. United States U.S. Census Bureau 2018 population estimate :||1152633|
|Area code :||801651|
|Latitude in decimal degrees locating the general NPA NXX geographic based service area :||40.76001948266539|
|Longitude in decimal degrees locating the general NPA NXX geographic based service area :||-111.8924822646963|
|Coordinated Universal Time (UTC) offset for the city geographic location. Format is +\-HH:MM :||Time zone UTC-07:00 (Mountain) / Summer (DST) UTC-06:00 (MDT)|
|NXX Use Type (Line type or telephone service type of the NPA NXX) :||Wireless type service including PCS, Cellular, GSM, etc.|
|The full, non-abbreviated name of the Rate Center, Rate Exchange Area, locality, or service :||Salt Lake City|
|Standard time zone recognized at the Rate Center, Rate Exchange Area, or locality :||America/Denver|
|Observes Daylight Saving Time :||Yes|
|Nearby Area Codes :||208/986 (Idaho), 307 (Wyoming), 385/801 (Salt Lake City, UT), 435 (St. George, UT), 505 (Albuquerque, NM), 575 (Las Cruces, NM), 775 (Reno, NV), 928 (Yuma, AZ), 970 (Fort Collins, CO)|
If you received some calls or text messages from unknown numbers +18016513721 or 8016513721 Salt Lake City, UT (Utah), US.
Area code 801: The original area code for the entirety of Utah; established in 1947. As of 2020, it includes the four counties of the Wasatch Front (Salt Lake, Utah, Davis, Weber) and Morgan County.
Area code 435: Split from 801 in 1997, encompassing all other counties in the state.
Area code 385: Split from 801 in 2009, area is synonymous with 801.