what area code is 289

The 289 area code is a telephone area code in the Canadian province of Ontario, encompassing the Niagara Region and parts of Southern Ontario. It was created in 2001 as an overlay for the 905 area code, which was running out of available phone numbers due to the proliferation of cell phones and other devices. The 289 area code serves the same area as the 905 area code. Some of the main locations it covers include Mississauga, Vaughan, Richmond Hill, and Hamilton. The current time zone for places served by area code 289 is Eastern Time (ET), which observes daylight saving time from mid-March to early November.