Area Code 603-927 located in SOUTH SUTTON, MERRIMACK, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 927 City : SOUTH SUTTON County : MERRIMACK State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33013 LATA (Local Access Transport Area) : 122 Rate Center : SUTTON ZIP Code Count : 71 ZIP Code Frequency : 12 ZIP Code : 03273 Other Information NPANXX : 603927 County Population : 0 Switch CLLI (Common Language Location Identifier) : STTNNHXARS1 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 : MERRIMACK COUNTY TELEPHONE CO. OCN (Operating Company Number) : 0047 Coverage Area Name : NEWBURY Latitude : 43.3360 Longitude : -71.9488 ‹ previous : 603-927 next › : 603-927 Telephone Number List 603-927-0000 ~ 603-927-9999