Area Code 516-603 located in GREAT NECK, NASSAU, NY, more detail is as below. Place NPA (Numbering Plan Area) : 516 NXX (Local Number Prefix) : 603 City : GREAT NECK County : NASSAU State : NY (New York) NXX Use Type : Wireless NXX Intro Version : 2001-10-31 FIPS (Federal Information Processing Standards) : 36059 LATA (Local Access Transport Area) : 132 Rate Center : NASSAUZN01 ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 11023 Other Information NPANXX : 516603 County Population : 0 Switch CLLI (Common Language Location Identifier) : BOHENY02CM3 MSA CBSA (Core Based Statistical Area) : New York-Northern New Jersey-Long Island, NY-NJ-PA MSA CBSA Code (Core Based Statistical Area) : 35620 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : OMNIPOINT COMMUNICATIONS, INC. - NY OCN (Operating Company Number) : 6622 Coverage Area Name : MANHASSET Latitude : 40.8114 Longitude : -73.7047 ‹ previous : 516-600 next › : 516-603 Telephone Number List 516-603-0000 ~ 516-603-9999