Area Code 860-755 located in PLYMOUTH, LITCHFIELD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 860 NXX (Local Number Prefix) : 755 City : PLYMOUTH County : LITCHFIELD State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 2000-10-31 FIPS (Federal Information Processing Standards) : 09005 LATA (Local Access Transport Area) : 920 Rate Center : HARTFORD ZIP Code Count : 2 ZIP Code Frequency : 50 ZIP Code : 06782 Other Information NPANXX : 860755 Switch CLLI (Common Language Location Identifier) : NWNTCT00DS0 MSA CBSA (Core Based Statistical Area) : Torrington, CT MSA CBSA Code (Core Based Statistical Area) : 45860 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 : EAST HARTFORD Latitude : 41.7745 Longitude : -72.6395 ‹ previous : 860-754 next › : 860-755 Telephone Number List 860-755-0000 ~ 860-755-9999