Geographic Regions and Area Codes

Area Code 363 is a relatively new addition to the North American Numbering Plan, specifically serving parts of New York. This area code covers Nassau County, located on Long Island, New York. Major towns and cities within this area code include:

  • Hempstead
  • Mineola
  • Baldwin
  • East Meadow
  • Elmont
  • Franklin Square
  • Freeport
  • Hicksville
  • Levittown
  • Long Beach
  • Oceanside
  • Uniondale
  • Valley Stream

Area Code 363 is an overlay of the existing 516 area code, which means both area codes serve the same geographic region in Nassau County, Long Island.