Area Code 603-592 located in WESTMORELAND, CHESHIRE, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 592 City : WESTMORELAND County : CHESHIRE State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 33005 LATA (Local Access Transport Area) : 122 Rate Center : SPOFFORD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03467 Other Information NPANXX : 603592 County Population : 0 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 : BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH OCN (Operating Company Number) : 7778 Coverage Area Name : CHESTERFIELD Latitude : 42.9057 Longitude : -72.4241 ‹ previous : 603-592 next › : 603-593 Telephone Number List 603-592-0000 ~ 603-592-9999