The state of Utah is divided into two telephone numbering plan areas in the North American Numbering Plan, which are assigned a total of three area codes, two overlay codes for the Salt Lake City area, and one code for the rest of the state.
The state of Utah is divided into two telephone numbering plan areas in the North American Numbering Plan, which are assigned a total of three area codes, two overlay codes for the Salt Lake City area, and one code for the rest of the state.