Area Code 203-440 located in MERIDEN, NEW HAVEN, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 440 City : MERIDEN County : NEW HAVEN State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 09009 LATA (Local Access Transport Area) : 920 Rate Center : MERIDEN ZIP Code Count : 305 ZIP Code Frequency : 59 ZIP Code : 06450 Other Information NPANXX : 203440 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNCHCTAVDS0 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 : COX CONNECTICUT TELECOM, LLC OCN (Operating Company Number) : 7077 Coverage Area Name : MERIDEN Latitude : 41.5357 Longitude : -72.8056 ‹ previous : 203-440 next › : 203-441 Telephone Number List 203-440-0000 ~ 203-440-9999