telephone code 760
Area code 760 is a California telephone area code that was split from area code 619 on March 22, 1997.Area code 442 is an overlay of 760 that became effective on November 21, 2009.It encompasses much of the southeastern and southernmost portions of the state.rea code 442 is an overlay of 760 that became effective on November 21, 2009. It encompasses much of the southeastern and southernmost portions of the state.