King City, Ontario Area Code

King City, ON Area Codes are

289, 365 and 905

King City, ON is officially utilizing an area code overlay in which area codes 289, 365 and 905 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to King City, ON area code information read more about area codes 289, 365, 905 details and Ontario area codes.

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