Find any 920- phone number in Wisconsin
The 920 area code is used in the southeastern region of Wisconsin, and is one of two area codes in the state. 920 was established in 1998 as a split from 414 and covers the Fox Cities, Oshkosh-Fond du Lac, and Sheboygan. It also includes an overlay with the 262 area code which serves southeastern Wisconsin.
The North American Numbering Plan (NANP) designates the 920 area code along with other area codes used in the United States, Canada, and the Caribbean. The NANP is used to assign telephone numbers and is administered by the North American Numbering Plan Administration. It works to ensure that each area code is uniquely assigned to one geographic area, based on the population and demand in that area. To make sure that all the area codes do not run out of numbers, the NANP also tailors area codes and makes provisions for future growth. NANP is a regulated system, so any new telephone number or area code changes must meet the eligibility criteria set by the administration.