Area Code 203-223 located in STAMFORD, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 223 City : STAMFORD 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 : STAMFORD ZIP Code Count : 1 ZIP Code Frequency : 25 ZIP Code : 06907 Other Information NPANXX : 203223 County Population : 0 Switch CLLI (Common Language Location Identifier) : SMFRCT21PMD 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : STAMFORD Latitude : 41.0528 Longitude : -73.5361 ‹ previous : 203-223 next › : 203-223 Telephone Number List 203-223-0000 ~ 203-223-9999