Area Code 603-736 located in EPSOM, MERRIMACK, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 736 City : EPSOM 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 : EPSOM ZIP Code Count : 1640 ZIP Code Frequency : 97 ZIP Code : 03234 Other Information NPANXX : 603736 County Population : 0 Switch CLLI (Common Language Location Identifier) : EPSMNHBHRS1 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 : NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH OCN (Operating Company Number) : 5113 Coverage Area Name : NORTHWOOD Latitude : 43.2247 Longitude : -71.3458 ‹ previous : 603-735 next › : 603-737 Telephone Number List 603-736-0000 ~ 603-736-9999