Find any 343- phone number in Ontario

The 343 area code serves the province of Ontario, Canada. It was introduced on March 25, 2013, as an overlay of the 613 area code. The two area codes are also known as the “Golden Horseshoe”, a region around the western end of Lake Ontario that includes the city of Toronto.

The 343 area code is part of the North American Numbering Plan, a system used by the United States, Canada, and several Caribbean countries in which every geographical area has a unique three-digit code. The use of area codes allows for a greater number of people to be able to receive a telephone line. Currently, the 343 area code serves over 500,000 people living in the Ontario area.