Area Code 203-588 located in NORWALK, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 588 City : NORWALK County : FAIRFIELD State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 09001 LATA (Local Access Transport Area) : 920 Rate Center : STAMFORD ZIP Code Count : 2 ZIP Code Frequency : 67 ZIP Code : 06850 Other Information NPANXX : 203588 County Population : 0 Switch CLLI (Common Language Location Identifier) : NRWLCTCVDS0 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 : CABLEVISION LIGHTPATH, INC. - CT OCN (Operating Company Number) : 4950 Coverage Area Name : STAMFORD Latitude : 41.0528 Longitude : -73.5361 ‹ previous : 203-588 next › : 203-589 Telephone Number List 203-588-0000 ~ 203-588-9999