Where is 437 area code?
437 – Toronto, ON
What area code is 437
Toronto is the capital of the province of Ontario and the largest city of Canada with 2.6 million inhabitants. In the Metropolitan Area Greater Toronto Area (GTA) live about 5.6 million inhabitants.
The Golden Horseshoe (Golden Horseshoe), the Region that lies like a horseshoe around the western end of Lake Ontario, is home to 8.1 million people.