Area Code 603-496 located in CANTERBURY, MERRIMACK, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 496 City : CANTERBURY County : MERRIMACK State : NH (New Hampshire) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33013 LATA (Local Access Transport Area) : 122 Rate Center : CONCORD ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 03224 Other Information NPANXX : 603496 County Population : 0 Switch CLLI (Common Language Location Identifier) : HKSTNHECCM0 MSA CBSA (Core Based Statistical Area) : Concord, NH MSA CBSA Code (Core Based Statistical Area) : 18180 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : BELL ATLANTIC NYNEX MOBILE OCN (Operating Company Number) : 6386 Coverage Area Name : CONCORD Latitude : 43.2007 Longitude : -71.5348 ‹ previous : 603-496 next › : 603-497 Telephone Number List 603-496-0000 ~ 603-496-9999