Area Code 603-363 located in CHESTERFIELD, CHESHIRE, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 363 City : CHESTERFIELD County : CHESHIRE State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33005 LATA (Local Access Transport Area) : 122 Rate Center : SPOFFORD ZIP Code Count : 370 ZIP Code Frequency : 33 ZIP Code : 03443 Other Information NPANXX : 603363 County Population : 0 Switch CLLI (Common Language Location Identifier) : SPFRNHMSRS1 MSA CBSA (Core Based Statistical Area) : Keene, NH MSA CBSA Code (Core Based Statistical Area) : 28300 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 : CHESTERFIELD Latitude : 42.9057 Longitude : -72.4241 ‹ previous : 603-362 next › : 603-363 Telephone Number List 603-363-0000 ~ 603-363-9999