Area Code 203-486 located in SOUTHBURY, NEW HAVEN, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 486 City : SOUTHBURY County : NEW HAVEN State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1997-10-11 FIPS (Federal Information Processing Standards) : 09009 LATA (Local Access Transport Area) : 920 Rate Center : WOODBURY ZIP Code Count : 2 ZIP Code Frequency : 100 ZIP Code : 06488 Other Information NPANXX : 203486 County Population : 0 Switch CLLI (Common Language Location Identifier) : SOBYCT00DS0 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 : SOUTHBURY Latitude : 41.4810 Longitude : -73.2112 ‹ previous : 203-485 next › : 203-487 Telephone Number List 203-486-0000 ~ 203-486-9999