Area Code 203-443 located in MERIDEN, NEW HAVEN, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 443 City : MERIDEN County : NEW HAVEN State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 09009 LATA (Local Access Transport Area) : 920 Rate Center : MERIDEN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 06450 Other Information NPANXX : 203443 County Population : 0 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 : BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT OCN (Operating Company Number) : 7230 Coverage Area Name : MERIDEN Latitude : 41.5357 Longitude : -72.8056 ‹ previous : 203-442 next › : 203-444 Telephone Number List 203-443-0000 ~ 203-443-9999