Area Code 905-377 located in WHITBY, , ON, more detail is as below. Place NPA (Numbering Plan Area) : 905 NXX (Local Number Prefix) : 377 City : WHITBY State : ON (Ontario) NXX Use Type : Landline NXX Intro Version : 1995-07-04 LATA (Local Access Transport Area) : 851 ZIP Code Count : 0 ZIP Code Frequency : 3 ZIP Code : L1N 5R5 Other Information NPANXX : 905377 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Coverage Area Name : COBOURG Latitude : 43.9575 Longitude : -78.1687 ‹ previous : 905-377 next › : 905-377 Telephone Number List 905-377-0000 ~ 905-377-9999