Area codes 920 and 274

The 920/274 area code covers most of Northeast Wisconsin including Green Bay and the Fox Cities as well as the far northern and eastern exurban areas of the Madison MSA and far northern and western portions of the Milwaukee CSA When the American Telephone and Telegraph Company (AT&T) divided the North American continent into the original eighty-six numbering plan areas (NPAs) for the first nationwide telephone numbering plan in 1947, Wisconsin received two area codes, 414 for the south and northeast, and 715, for the northern part.

The split became effective on July 26, 1997, and a permissive dialing period ended on October 25, 1997.

[6] The Great Recession, number porting, a decline in landlines, and other factors delayed that requirement for fifteen years during which implementation was deferred several times.

[9] On December 8, 2008, the Public Service Commission finally approved an all-services distributed overlay as the relief method for NPA 920 and on March 16, 2022, the NANPA established the timeline for installation, setting the in-service date of area code 274 to March 22, 2024.

The area code serves the following counties: This includes the following towns and cities: Area code 920 was commonly remembered by using the mnemonic device of the late Green Bay Packer Reggie White's jersey number, 92, adding a zero.