Area Code 973-323 located in MILLBURN, ESSEX, NJ, more detail is as below. Place NPA (Numbering Plan Area) : 973 NXX (Local Number Prefix) : 323 City : MILLBURN 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 : ORANGE ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 07041 Other Information NPANXX : 973323 Switch CLLI (Common Language Location Identifier) : NBWKNJ17DS1 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 : MCIMETRO ACCESS TRANSMISSION SERVICES LLC OCN (Operating Company Number) : 7229 Coverage Area Name : ORANGE Latitude : 40.7722 Longitude : -74.2295 ‹ previous : 973-322 next › : 973-324 Telephone Number List 973-323-0000 ~ 973-323-9999