Area Code 339-202 located in CAMBRIDGE, MIDDLESEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 339 NXX (Local Number Prefix) : 202 City : CAMBRIDGE County : MIDDLESEX State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 11/1/2011 FIPS (Federal Information Processing Standards) : 25017 LATA (Local Access Transport Area) : 128 Rate Center : LEXINGTON ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 02142 Other Information NPANXX : 339202 County Population : 0 MSA CBSA (Core Based Statistical Area) : Boston-Cambridge-Quincy, MA-NH MSA CBSA Code (Core Based Statistical Area) : 14460 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Overlay : L Company : MCI WORLDCOM COMMUNICATIONS, INC. - MA OCN (Operating Company Number) : 7199 Coverage Area Name : CAMBRIDGE Latitude : 42.3676 Longitude : -71.0867 ‹ previous : 339-201 next › : 339-203 Telephone Number List 339-202-0000 ~ 339-202-9999