Area Code 289-280 located in MOUNT HOPE, , ON, more detail is as below. Place NPA (Numbering Plan Area) : 289 NXX (Local Number Prefix) : 280 City : MOUNT HOPE State : ON (Ontario) NXX Use Type : Landline NXX Intro Version : 2005-06-25 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 : 289280 County Population : 87424 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Coverage Area Name : MOUNT HOPE Latitude : 43.1673 Longitude : -79.9106 ‹ previous : 289-264 next › : 289-281 Telephone Number List 289-280-0000 ~ 289-280-9999