Area Code 289-235 located in GRIMSBY, , ON, more detail is as below. Place NPA (Numbering Plan Area) : 289 NXX (Local Number Prefix) : 235 City : GRIMSBY State : ON (Ontario) NXX Use Type : Landline NXX Intro Version : 2006-06-01 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 : 289235 County Population : 24906 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Coverage Area Name : GRIMSBY Latitude : 43.1908 Longitude : -79.5587 ‹ previous : 289-231 next › : 289-237 Telephone Number List 289-235-0000 ~ 289-235-9999