Area Code 603-428 located in HENNIKER, MERRIMACK, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 428 City : HENNIKER 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 : HENNIKER ZIP Code Count : 1985 ZIP Code Frequency : 100 ZIP Code : 03242 Other Information NPANXX : 603428 County Population : 0 Switch CLLI (Common Language Location Identifier) : HNKRNHXARS2 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 CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY OCN (Operating Company Number) : 3320 Coverage Area Name : HENNIKER Latitude : 43.1814 Longitude : -71.8229 ‹ previous : 603-427 next › : 603-429 Telephone Number List 603-428-0000 ~ 603-428-9999
