The area code 801 is located in Utah and covers Salt Lake City, West Valley City, Provo, West Jordan, and Orem. It is one of the original 86 area codes created by AT&T and the Bell System in 1947 and originally served the entire state of Utah. In 1997, area code 801 was split, creating the need to update some of the phone numbers to area code 435. In 2009, area code 385 was created and is currently an overlay to 801.