Geographic Regions and Area Codes in Area Code 646

Area Code 646 is a vital telecommunication identifier in New York City, primarily covering Manhattan while also extending to portions of the Bronx, Brooklyn, Queens, and Staten Island. Created as part of an overlay plan, 646 shares its geographic territory with area codes 212, 917, and 332, providing comprehensive coverage across New York City's five boroughs. The area code spans the heart of America's largest metropolitan area and is bordered by:

  • 347 (Brooklyn, Bronx, Queens, Staten Island)
  • 718 (Brooklyn, Bronx, Queens, Staten Island)
  • 929 (Brooklyn, Bronx, Queens, Staten Island)
  • 914 (Westchester County, NY)
  • 201 (Jersey City, NJ)
  • 203 (Stamford, CT)
  • 516 (Nassau County, NY)

This overlay system ensures adequate numbering resources for one of the world's most densely populated and business-intensive regions, supporting Manhattan's role as a global financial and commercial hub while serving the broader New York City metropolitan area.