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Wisconsin is currently using five area codes. Wisconsin currently has two area codes which are assigned to provide numbering
relief as area code overlays but neither are in service.
Wisconsin originally had two area codes, 414 and 715, when the numbering system was established in 1947. By 1955 Wisconsin experienced
sufficient growth in population and telephone use to need an additional area code. To meet this increase in demand area codes 414 and 715 were split in 1955 to form area code 608. It was forty-two years
later before the demand for new numbers in Wisconsin required a second split of area code 414 to form area code 920 in 1997. Two years later in 1999 area code 414 was split a third time to form area code 262.
Changes and History of Wisconsin Area Codes:
01/01/1947
Area code 414 was put into service. In 1955 area code 414 was split to form a portion of area code 608. In 1997 area code 414 was
split to form area code 920. In 1999 area code 414 was split to form area code 262.
01/01/1947
Area code 715 was put into service. In 1955 area code 715 was split to form a portion of area code 608.
01/01/1955
Area code 608 was put into service. Area code 608 was created from a split of area codes 414 and 715. |
