437 Area Code
Toronto (overlay), Ontario
Area code 437 is located in Toronto (overlay), Ontario. It covers Toronto, North York, and surrounding areas in the Eastern time zone (UTC-5). Administered by NANPA.
Where is area code 437?
Area code 437 is located in Toronto (overlay), Ontario. It covers Toronto, North York, and surrounding areas in the Eastern time zone (UTC-5).
Cities Covered by Area Code 437
Area code 437 primarily serves the Toronto (overlay) area of Ontario. The exact coverage includes Toronto, North York, and Scarborough, along with surrounding communities and suburbs.
Time Zone
Eastern Time — UTC-5
Area code 437 operates in the Eastern Time Zone. When calling 437 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 437
Area code 437 was introduced in 2013 as a geographic area code serving Toronto (overlay), Ontario, Canada. It remains the primary area code for this region. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.