Area code 914 is the telephone area code in the North American Numbering Plan (NANP) for Westchester County, New York. Area code 914 was one of the first area codes announced when the North American Numbering Plan was created in October 1947, when it was assigned to a numbering plan area (NPA) comprising Delaware, Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk, Sullivan, Ulster, and Westchester counties, an area largely coextensive with the New York state portion of the New York metropolitan area, excluding New York City, which received area code 212. In 1951, Long Island (Nassau and Suffolk counties) received area code 516 in a split of 914.