Area Code 203-912 located in HARTFORD, HARTFORD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 203 NXX (Local Number Prefix) : 912 City : HARTFORD County : HARTFORD State : CT (Connecticut) NXX Use Type : Wireless NXX Intro Version : 1996-07-01 FIPS (Federal Information Processing Standards) : 09003 LATA (Local Access Transport Area) : 920 Rate Center : STAMFORD ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 06103 Other Information NPANXX : 203912 County Population : 0 Switch CLLI (Common Language Location Identifier) : SMFRCT01DS2 MSA CBSA (Core Based Statistical Area) : Hartford-West Hartford-East Hartford, CT MSA CBSA Code (Core Based Statistical Area) : 25540 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT OCN (Operating Company Number) : 6388 Coverage Area Name : STAMFORD Latitude : 41.0528 Longitude : -73.5361 ‹ previous : 203-912 next › : 203-913 Telephone Number List 203-912-0000 ~ 203-912-9999