Area code 302 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Delaware. It is Delaware's only area code, and was assigned in 1947 as one of the original North American area codes.

Area code 302 serves the state of Delaware. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 302 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.