Area Code 603-973 located in ROCHESTER, STRAFFORD, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 973 City : ROCHESTER County : STRAFFORD State : NH (New Hampshire) NXX Use Type : Wireless NXX Intro Version : 2002-10-25 FIPS (Federal Information Processing Standards) : 33017 LATA (Local Access Transport Area) : 122 Rate Center : ROCHESTER ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03839 Other Information NPANXX : 603973 County Population : 0 Switch CLLI (Common Language Location Identifier) : LDRYNHEMCM0 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : ROCHESTER Latitude : 43.3036 Longitude : -70.9715 ‹ previous : 603-973 next › : 603-974 Telephone Number List 603-973-0000 ~ 603-973-9999