Area Code 603-283 located in KEENE, CHESHIRE, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 283 City : KEENE County : CHESHIRE State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 33005 LATA (Local Access Transport Area) : 122 Rate Center : KEENE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03431 Other Information NPANXX : 603283 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNCHNHCOXMX MSA CBSA (Core Based Statistical Area) : Keene, NH MSA CBSA Code (Core Based Statistical Area) : 28300 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : PAETEC COMMUNICATIONS, INC. - NH OCN (Operating Company Number) : 4206 Coverage Area Name : KEENE Latitude : 42.9375 Longitude : -72.2775 ‹ previous : 603-282 next › : 603-284 Telephone Number List 603-283-0000 ~ 603-283-9999