Area codes 315 and 680 are telephone area codes of the North American Numbering Plan (NANP) for the north- central area of the U.S. state of New York. Area code 315 was installed as one of the original North American area codes in 1947, while area code 680 was added to the numbering plan area (NPA) in an overlay plan in 2017.

The 315 Area Code is located in the state of New York. Area Code 315 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 7,789,640 unique phone numbers and 634,476 individuals near the cities of Syracuse, Utica, and Watertown.

Area Code 315 is located in New York. It covers 175 cities, including Syracuse, Utica, Rome, Auburn, and Watertown. It also covers 16 counties, including Onondaga County, Oneida County, Jefferson County, Saint Lawrence County, and Oswego County.