Area Code 516 History:
Area code 516 was put into service. Area code 516 was created from a split of area code 914. In 1999 area code 516 was split to form area code 631.
Counties in New York within area code 516 include:
Major cities or places in New York within area code 516 include:
Area code 516 serves Nassau County in Long Island including the larger cities and towns of Glen Cove, Hempstead, Long Beach, and Oyster Bay in addition to many smaller villages and hamlets within Nassau County.