| District of Wisconsin area codes: 920 | |
|---|---|
| Country | United States |
| State/Province | Wisconsin |
| Major City | Milwaukee |
| Time Zone | Central |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 920-262 | Jefferson | Watertown, WI | Ameritech Wisconsin |
| 920-263 | Fond Du Lac | Fond Du Lac, WI | New Cell DBA Cellcom |
| 920-264 | Brown | Green Bay, WI | Level 3 Communications |
| 920-265 | Brown | Green Bay, WI | Sprint Spectrum L.p. |
| 920-266 | Fond Du Lac | Fond Du Lac, WI | Ameritech Wisconsin |
| 920-267 | Winnebago | Oshkosh, WI | Level 3 Communications |
| 920-268 | Outagamie | Appleton, WI | Level 3 Communications |
| 920-269 | Dodge | Lomira, WI | Frontier North Inc. |
| 920-270 | Brown | Green Bay, WI | Usa Mobility Wireless |
| 920-271 | Brown | Green Bay, WI | Tds Metrocom Inc. |
| 920-272 | Brown | Green Bay, WI | Net Lec |
| 920-273 | Fond Du Lac | Fond Du Lac, WI | Us Xchange Of Wisconsin LLC DBA Choice One Comm Wi |
| 920-275 | Outagamie | Appleton, WI | Usa Mobility Wireless |
| 920-276 | Dodge | Theresa, WI | Frontier North Inc. |
| 920-277 | Outagamie | Appleton, WI | Sprint Spectrum L.p. |
| 920-278 | Brown | Green Bay, WI | Global Crossing Telemanagement-wi |
| 920-279 | Winnebago | Oshkosh, WI | Cellco Partnership DBA Verizon Wireless |
| 920-281 | Outagamie | Appleton, WI | Tds Metrocom Inc. |
| 920-282 | Columbia | Cambria, WI | Peerless Network Of Wisconsin |
| 920-283 | Sheboygan | Sheboygan, WI | Airadigm Communications Inc |
There are 678 prefixes, In the code area, the major cities are Appleton, WI;De Pere, WI;Fond Du Lac, WI;Green Bay. The major city is Milwaukee.