The area code 516 is located in Freeport, New York.
Area code 516 serves Freeport, New York, and all of Nassau County on Long Island’s South Shore. Freeport is a waterfront village known for the Nautical Mile, marinas, and charter boats, making 516 central to local homes and businesses. The code was established in 1951 when Long Island split from 914; it covered both Nassau and Suffolk until 1999, when 631 took over Suffolk County. Today, 516 remains the primary area code for Nassau County phone numbers across mobile and landline service.
Major 516 communities and landmarks include:
In 2023, Nassau added the 363 overlay, so new numbers may use 363 while existing numbers keep 516; 10‑digit dialing is required for local calls within 516/363. The area follows the Eastern Time Zone (ET) and observes daylight saving time. If you see a 516 call, it most often traces back to Nassau County communities like Freeport, Hempstead, or Long Beach.
“Nassau County population: 1,395,774.” (U.S. Census Bureau, 2020)
Fun fact: Nassau County’s two cities—Glen Cove and Long Beach—both use 516. Freeport ranks among New York State’s largest incorporated villages, reflecting the area’s dense, suburban character. With busy commuter hubs on the Long Island Rail Road and popular shoreside destinations, area code 516 connects everyday life, education, shopping, and beach culture across Long Island’s western end.