Area codes 760 and 442 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. These area codes serve an overlay complex that comprises much of the southeastern and southernmost portions of California. It includes Imperial, Inyo, and Mono counties, as well as portions of North County San Diego, Riverside, San Bernardino, Los Angeles and Kern counties. Area code 760 was created on March 22, 1997 in a split of area code 619.[1] Area code 442 was added to the same area on November 21, 2009.