Area Code 920: Appleton, Wisconsin and Surrounding Areas - area-code -

Frequently Asked Questions

Green Bay, Wisconsin is in area code 920, which also serves Appleton, Oshkosh, Sheboygan, and Fond du Lac. Area code 920 covers a large portion of eastern Wisconsin.
To dial a 920 number from a different area code, dial 1 followed by the 10-digit number (area code + 7-digit number). This follows standard North American Numbering Plan (NANP) long-distance dialing procedures.
Area code 274 was introduced in 2023 as an overlay to area code 920. This means both area codes serve the same geographic region in eastern Wisconsin, increasing available phone numbers and delaying the need for a split.
Area code 920 was created on July 26, 1997, as a split from area code 414. This was done to accommodate the increasing demand for phone numbers due to the region's rapid growth.
The 920 area code was implemented to address the growing demand for phone numbers in eastern Wisconsin, which the existing 414 area code could no longer support. The split ensured sufficient numbering resources for continued development in the region.
The approximate geographic center of area code 920 is located near Appleton, Wisconsin, at latitude 44.26193 and longitude -88.41538.
10-digit dialing (area code + 7-digit number) is required for all calls within area codes 920 and 274, even local calls. This change was implemented in October 2021 following the establishment of 988 as the National Suicide Prevention Lifeline.
Area code 920 is regulated by the Federal Communications Commission (FCC), the North American Numbering Plan Administration (NANPA), and the Wisconsin Public Service Commission (PSC). These bodies work together to manage area codes and ensure compliance.
Area code 920 covers cities like Appleton, Green Bay, Oshkosh, Sheboygan, and Fond du Lac in eastern Wisconsin. It encompasses a mix of urban centers, smaller towns, and rural communities.
The 274 overlay has postponed the exhaustion of 920 numbers. However, the North American Numbering Plan Administration (NANPA) continuously monitors usage and will implement further measures if needed. Area code 920 was projected to run out of assignable prefixes by the first quarter of 2024, according to WBAY-TV, before the 274 overlay became active.
Dial the full 10-digit number (area code + 7-digit number) for all calls within area code 920, even for local calls. This has been mandatory since October 2021 due to the implementation of 988 as the suicide prevention lifeline.
Area code 274 was implemented as an overlay to area code 920 in 2023. This overlay adds a second area code to the same geographic region, allowing for more phone numbers and avoiding the need to split area code 920 again.
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