Area Code 203-966 located in NEW CANAAN, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 966 City : NEW CANAAN 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 : NEW CANAAN ZIP Code Count : 4165 ZIP Code Frequency : 98 ZIP Code : 06840 Other Information NPANXX : 203966 County Population : 0 Switch CLLI (Common Language Location Identifier) : NWCNCT00RS0 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 : NEW CANAAN Latitude : 41.1482 Longitude : -73.4924 ‹ previous : 203-965 next › : 203-967 Telephone Number List 203-966-0000 ~ 203-966-9999