Area Code 203-722 located in GREENWICH, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 722 City : GREENWICH County : FAIRFIELD State : CT (Connecticut) NXX Use Type : Wireless NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 09001 LATA (Local Access Transport Area) : 920 Rate Center : NORWALK ZIP Code Count : 2 ZIP Code Frequency : 50 ZIP Code : 06831 Other Information NPANXX : 203722 County Population : 0 Switch CLLI (Common Language Location Identifier) : BRPTCT04CM3 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 : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : NORWALK Latitude : 41.1003 Longitude : -73.4187 ‹ previous : 203-722 next › : 203-723 Telephone Number List 203-722-0000 ~ 203-722-9999