. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 365 area code) below and access available caller information such as name, address, and more.
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Area code 365 covers the Niagara Peninsula, the city of Hamilton, the regional municipalities of Halton, Peel, York, Durham, and parts of Northumberland County, but excludes the City of Toronto.
Area code 365 is part of an overlay system with area codes 905, 289, and 742, all serving the same geographic region. Area code 905 was established in October 1993, 289 was overlaid on June 9, 2001, 365 was introduced on March 25, 2013, and 742 was added on October 16, 2021. Ten-digit dialing is required for all local calls in this region.
Area code 365 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 365 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Ontario geographic region, and local calling area associated with the phone number.
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| Rate Center | Number of Prefixes |
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