Area Code 603-298 located in PLAINFIELD, SULLIVAN, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 298 City : PLAINFIELD County : SULLIVAN State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 33019 LATA (Local Access Transport Area) : 122 Rate Center : W LEBANON ZIP Code Count : 126 ZIP Code Frequency : 7 ZIP Code : 03781 Other Information NPANXX : 603298 County Population : 0 Switch CLLI (Common Language Location Identifier) : WRJTVTGADS2 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 : W LEBANON Latitude : 43.6481 Longitude : -72.3200 ‹ previous : 603-297 next › : 603-298 Telephone Number List 603-298-0000 ~ 603-298-9999