Area Code 203-438 located in REDDING, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 438 City : REDDING County : FAIRFIELD State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 09001 LATA (Local Access Transport Area) : 920 Rate Center : RIDGEFIELD ZIP Code Count : 85 ZIP Code Frequency : 2 ZIP Code : 06896 Other Information NPANXX : 203438 County Population : 0 Switch CLLI (Common Language Location Identifier) : RDFDCT00RS1 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 : SOUTHERN NEW ENGLAND TELEPHONE CO. OCN (Operating Company Number) : 9147 Coverage Area Name : RIDGEFIELD Latitude : 41.2839 Longitude : -73.4992 ‹ previous : 203-437 next › : 203-438 Telephone Number List 203-438-0000 ~ 203-438-9999