Area Code 203-343 located in MERIDEN, NEW HAVEN, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 343 City : MERIDEN County : NEW HAVEN State : CT (Connecticut) NXX Use Type : Wireless NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 09009 LATA (Local Access Transport Area) : 920 Rate Center : DANBURY ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 06450 Other Information NPANXX : 203343 County Population : 0 Switch CLLI (Common Language Location Identifier) : DNBRCT00DS1 MSA CBSA (Core Based Statistical Area) : New Haven-Milford, CT MSA CBSA Code (Core Based Statistical Area) : 35300 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : DERBY Latitude : 41.3242 Longitude : -73.0881 ‹ previous : 203-342 next › : 203-344 Telephone Number List 203-343-0000 ~ 203-343-9999