Area codes 416, 647, 437, and 942 are telephone overlay area codes in the North American Numbering Plan for the city of Toronto, Ontario, Canada.
Toronto
Evolution of area codes in Ontario and southwestern Quebec
The original North American area codes were established by the American Telephone and Telegraph Company in 1947. The assignment was in accord with the design of a uniform nationwide telephone numberin
Area codes 416, 647, 437, and 942
…overlay area codes in the North American Numbering Plan (NANP) for the city of Toronto, Ontario, Canada. Area code 416 was assigned as one of the original North American area codes to a numbering plan area (NPA) in southern Ontario in 1947. After reductions in geographic reach by area code splits in 1953 and 1993, area codes 647…
Face of a 1939 rotary telephone dial with the telephone number LA-2697, which includes the first two letters of Lakewood, New Jersey, as the central office prefix, later converted to LA6.