Area Code 603-906 located in ROCHESTER, STRAFFORD, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 906 City : ROCHESTER County : STRAFFORD State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 10/30/2009 FIPS (Federal Information Processing Standards) : 33017 LATA (Local Access Transport Area) : 122 Rate Center : BARNSTEAD ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 03867 Other Information NPANXX : 603906 County Population : 0 MSA CBSA (Core Based Statistical Area) : Boston-Cambridge-Quincy, MA-NH MSA CBSA Code (Core Based Statistical Area) : 14460 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : IDT AMERICA CORP - NH OCN (Operating Company Number) : 314C Coverage Area Name : ROCHESTER Latitude : 43.3262 Longitude : -70.9700 ‹ previous : 603-905 next › : 603-907 Telephone Number List 603-906-0000 ~ 603-906-9999