Area Code 860-258 located in ROCKY HILL, HARTFORD, CT, more detail is as below. Place NPA (Numbering Plan Area) : 860 NXX (Local Number Prefix) : 258 City : ROCKY HILL County : HARTFORD State : CT (Connecticut) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 09003 LATA (Local Access Transport Area) : 920 Rate Center : HARTFORD ZIP Code Count : 97 ZIP Code Frequency : 65 ZIP Code : 06067 Other Information NPANXX : 860258 Switch CLLI (Common Language Location Identifier) : WTFDCT00DS0 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 : SOUTHERN NEW ENGLAND TELEPHONE CO. OCN (Operating Company Number) : 9147 Coverage Area Name : HARTFORD Latitude : 41.7075 Longitude : -72.6635 ‹ previous : 860-258 next › : 860-259 Telephone Number List 860-258-0000 ~ 860-258-9999