Area Code 437

Area Code 437 is in Ontario

Other Ontario Area Codes
226, 249, 289, 343, 365, 416, 437, 519, 548, 613, 647, 705, 807, 905

Ontario Area Code Overlays
(416 and 647 and 437) - (519 and 226 and 548)
(613 and 343) - (905 and 289 and 365) - (705 and 249)

Area Code 437 History:

Area code 437 was put into service. Area code 437 is an overlay of area codes area codes 416 and 647.

Ten digit dialing (area code + seven digit number) is necessary in the 416/647/437 overlay because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Major cities or places in Ontario within area code 437 include:

When implemented the area code overlays of 416, 437 and 647 will serve the City of Toronto. The surrounding suburbs are served by area code 905.

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