Area Code 603-446 located in LEMPSTER, SULLIVAN, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 446 City : LEMPSTER County : SULLIVAN State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33019 LATA (Local Access Transport Area) : 122 Rate Center : MARLOW ZIP Code Count : 84 ZIP Code Frequency : 8 ZIP Code : 03605 Other Information NPANXX : 603446 County Population : 0 Switch CLLI (Common Language Location Identifier) : MRLWNHYARS1 MSA CBSA (Core Based Statistical Area) : Claremont, NH MSA CBSA Code (Core Based Statistical Area) : 17200 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 : MARLOW Latitude : 43.0995 Longitude : -72.1953 ‹ previous : 603-446 next › : 603-446 Telephone Number List 603-446-0000 ~ 603-446-9999