Area Code 203-628 located in CHESHIRE, NEW HAVEN, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 628 City : CHESHIRE County : NEW HAVEN State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 09009 LATA (Local Access Transport Area) : 920 Rate Center : DANBURY ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 06410 Other Information NPANXX : 203628 County Population : 0 Switch CLLI (Common Language Location Identifier) : NRWLCTCVDS0 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 : CABLEVISION LIGHTPATH, INC. - CT OCN (Operating Company Number) : 4950 Coverage Area Name : DANBURY Latitude : 41.3956 Longitude : -73.4537 ‹ previous : 203-628 next › : 203-629 Telephone Number List 203-628-0000 ~ 203-628-9999