Area Code 203-240 located in DANBURY, FAIRFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 240 City : DANBURY 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 : DANBURY ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 06811 Other Information NPANXX : 203240 County Population : 0 Switch CLLI (Common Language Location Identifier) : DNBRCT00DS1 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 : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT OCN (Operating Company Number) : 6388 Coverage Area Name : DANBURY Latitude : 41.3956 Longitude : -73.4537 ‹ previous : 203-240 next › : 203-241 Telephone Number List 203-240-0000 ~ 203-240-9999