Area Code 905-200 located in CASTLEMORE, , ON, more detail is as below. Place NPA (Numbering Plan Area) : 905 NXX (Local Number Prefix) : 200 City : CASTLEMORE State : ON (Ontario) NXX Use Type : Landline NXX Intro Version : 2005-03-27 LATA (Local Access Transport Area) : 851 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. Other Information NPANXX : 905200 Coverage Area Name : CASTLEMORE Latitude : 43.7837 Longitude : -79.7033 ‹ previous : 904-999 next › : 905-201 Telephone Number List 905-200-0000 ~ 905-200-9999