Area codes 416, 647, and 437 - Wikipedia
https://en.wikipedia.org/wiki/Area_codes_416,_647,_and_437
OverviewHistoryFutureLocal calling areaIn popular cultureCentral office codesSee alsoFurther readingArea codes 416, 647, and 437 are telephone area codes in the North American Numbering Plan (NANP) for the city of Toronto, Ontario, Canada. Area code 416 is one of the original North American area codes created by the American Telephone and Telegraph Company (AT&T) in 1947. Area codes 647 and 437 are additional area codes for the same numbering plan area (NPA), forming an
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