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742 Area Code

Major City:Hamilton, ON
Current Time:

History of area code 742

742 was first put in service October 16, 2021. It was created from area code 905.

Where is area code 742

Area code 742 serves the area surrounding Toronto, Ontario, Canada including Hamilton. It is an overlay for area code 905 and serves the same area.

What time zone is area code 742?

The 742 area code is located in the Eastern timezone. The Eastern time zone is also known as America/New_York

area code 742

742 area code map


  • Hamilton, ON

Largest Landline Carriers in area code742


Largest Wireless Carriers in area code742


Prefixes in area code742

PrefixUsagePrimary CityCarrierIntroduced