Area Code 603-447 located in CENTER CONWAY, CARROLL, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 447 City : CENTER CONWAY County : CARROLL State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33003 LATA (Local Access Transport Area) : 122 Rate Center : CONWAY ZIP Code Count : 435 ZIP Code Frequency : 12 ZIP Code : 03813 Other Information NPANXX : 603447 County Population : 0 Switch CLLI (Common Language Location Identifier) : CNWYNHYARS1 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 : CONWAY Latitude : 43.9826 Longitude : -71.1157 ‹ previous : 603-446 next › : 603-447 Telephone Number List 603-447-0000 ~ 603-447-9999