Area Code 201-221 located in PISCATAWAY, MIDDLESEX, NJ, more detail is as below. Place NPA (Numbering Plan Area) : 201 NXX (Local Number Prefix) : 221 City : PISCATAWAY County : MIDDLESEX State : NJ (New Jersey) NXX Use Type : Landline NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 34023 LATA (Local Access Transport Area) : 224 Rate Center : HACKENSACK ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 08854 Other Information NPANXX : 201221 County Population : 0 Switch CLLI (Common Language Location Identifier) : RCPKNJ02BMD 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 : TELEPORT COMMUNICATIONS GROUP - NEW YORK - NJ OCN (Operating Company Number) : 7142 Coverage Area Name : HACKENSACK Latitude : 40.9098 Longitude : -74.0694 ‹ previous : 201-220 next › : 201-221 Telephone Number List 201-221-0000 ~ 201-221-9999