Madison Time| City | Area Code | Dialing Code |
| Appleton | 920 | +1 920 |
| Caledonia | 414 | +1 414 |
| De Pere | 920 | +1 920 |
| Eau Claire | 715 | +1 715 |
| Fond du Lac | 920 | +1 920 |
| Franklin | 414 | +1 414 |
| Green Bay | 920 | +1 920 |
| Janesville | 608 | +1 608 |
| Kaukauna | 920 | +1 920 |
| Kenosha | 262 | +1 262 |
| La Crosse | 608 | +1 608 |
| Madison | 608 | +1 608 |
| Manitowoc | 920 | +1 920 |
| Menomonee Falls | 262 | +1 262 |
| Middleton | 608 | +1 608 |
| Milwaukee | 414 | +1 414 |
| Muskego | 262 | +1 262 |
| Neenah | 920 | +1 920 |
| Oak Creek | 414 | +1 414 |
| Oshkosh | 920 | +1 920 |
| Racine | 262 | +1 262 |
| Sheboygan | 920 | +1 920 |
| Sun Prairie | 608 | +1 608 |
| Waukesha | 262 | +1 262 |
| Wauwatosa | 414 | +1 414 |
| West Bend | 262 | +1 262 |