Area Code 603-209 located in KEENE, CHESHIRE, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 209 City : KEENE County : CHESHIRE State : NH (New Hampshire) NXX Use Type : Wireless NXX Intro Version : 1999-10-13 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 : 603209 County Population : 0 Switch CLLI (Common Language Location Identifier) : MRMCNHGICM0 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 : UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE OCN (Operating Company Number) : 6290 Coverage Area Name : KEENE Latitude : 42.9375 Longitude : -72.2775 ‹ previous : 603-208 next › : 603-210 Telephone Number List 603-209-0000 ~ 603-209-9999