To wykaz stron Numer Kierunkowy Kraju(NDC):646. Informacje o podano niżej.
Area code 646 was first put in service July 1, 1999. To avoid exhausting all possible phone numbers in this area code, relief planning has begun. Currently, the largest city it serves is New York, NY, and it overlaps coverage areas with area codes 212, 332, and 917.