Area Code 603-404 located in TILTON, BELKNAP, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 404 City : TILTON County : BELKNAP State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 3/12/2013 FIPS (Federal Information Processing Standards) : 33001 LATA (Local Access Transport Area) : 122 Rate Center : TILTON ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 03276 Other Information NPANXX : 603404 County Population : 0 MSA CBSA (Core Based Statistical Area) : Laconia, NH MSA CBSA Code (Core Based Statistical Area) : 29060 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH OCN (Operating Company Number) : 7778 Coverage Area Name : TILTON Latitude : 43.4446 Longitude : -71.5920 ‹ previous : 603-402 next › : 603-407 Telephone Number List 603-404-0000 ~ 603-404-9999