Area Code 631
Area Code 631 is in New York
(212, 646 and 917)
(718, 347, 917 and 929)
Area Code 631 History:
Area code 631 was put into service. Area code 631 was created from a split of area code 516.
Counties in New York within area code 631 include:
Major cities or places in New York within area code 631 include:
Area code 631 serves Suffolk County on Long Island the including the towns and communities of Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Shelter Island, Smithtown, Southampton and Southold.