Area Code 203-279 located in GREENWICH, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 279 City : GREENWICH County : FAIRFIELD State : CT (Connecticut) NXX Use Type : Wireless NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 09001 LATA (Local Access Transport Area) : 920 Rate Center : BRIDGEPORT ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 06831 Other Information NPANXX : 203279 County Population : 0 Switch CLLI (Common Language Location Identifier) : BRPTCT03DS0 MSA CBSA (Core Based Statistical Area) : Bridgeport-Stamford-Norwalk, CT MSA CBSA Code (Core Based Statistical Area) : 14860 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : USA MOBILITY WIRELESS, INC. OCN (Operating Company Number) : 6630 Coverage Area Name : BRIDGEPORT Latitude : 41.1777 Longitude : -73.1933 ‹ previous : 203-278 next › : 203-279 Telephone Number List 203-279-0000 ~ 203-279-9999