Area Code 414 History:
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.
Counties in Wisconsin within area code 414 include:
Jefferson County, Milwaukee County, and Racine County.
Major cities or places in Wisconsin within area code 414 include:
Area code 414 primarily serves Milwaukee County, including the city of Milwaukee and the surrounding suburbs, which includes the larger cities and communities of Franklin, Greenfield, Milwaukee, Oak Creek, South Milwaukee, Wauwatosa, and West Allis in addition to many smaller communities.