Area Code 203-833 located in STAMFORD, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 833 City : STAMFORD County : FAIRFIELD State : CT (Connecticut) NXX Use Type : Wireless NXX Intro Version : 1994-09-11 FIPS (Federal Information Processing Standards) : 09001 LATA (Local Access Transport Area) : 920 Rate Center : NORWALK ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 06901 Other Information NPANXX : 203833 County Population : 0 Switch CLLI (Common Language Location Identifier) : NRWLCT02DS0 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 : NORWALK Latitude : 41.1003 Longitude : -73.4187 ‹ previous : 203-832 next › : 203-834 Telephone Number List 203-833-0000 ~ 203-833-9999