Area Code 203-379 located in MERIDEN, NEW HAVEN, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 379 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 : 100 ZIP Code Frequency : 36 ZIP Code : 06451 Other Information NPANXX : 203379 County Population : 0 Switch CLLI (Common Language Location Identifier) : MRDNCT00DS1 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 : SOUTHERN NEW ENGLAND TELEPHONE CO. OCN (Operating Company Number) : 9147 Coverage Area Name : MERIDEN Latitude : 41.5357 Longitude : -72.8056 ‹ previous : 203-378 next › : 203-379 Telephone Number List 203-379-0000 ~ 203-379-9999