Area Code 973-421 located in NEWARK, ESSEX, NJ, more detail is as below. Place NPA (Numbering Plan Area) : 973 NXX (Local Number Prefix) : 421 City : NEWARK County : ESSEX State : NJ (New Jersey) NXX Use Type : Landline NXX Intro Version : 1997-07-06 FIPS (Federal Information Processing Standards) : 34013 LATA (Local Access Transport Area) : 224 Rate Center : NEWARK ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 07108 Other Information NPANXX : 973421 Switch CLLI (Common Language Location Identifier) : NWRKNJWADS5 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 : VERIZON NEW JERSEY, INC. OCN (Operating Company Number) : 9206 Coverage Area Name : NEWARK Latitude : 40.7120 Longitude : -74.2138 ‹ previous : 973-421 next › : 973-422 Telephone Number List 973-421-0000 ~ 973-421-9999