About this number
(920) 563 is a landline based telephone number operated by Ameritech Wisconsin and is located in zip code 53538 in the city of Fort Atkinson, Wisconsin, which is in Jefferson County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 920 and Network Numbering Exchange (NXX - also known as a prefix) of 563. It has an Operating Company Number (OCN) of 9327. A Common Language Location Identifier (CLLI) of FTATWI11RS0. As well as a Local access and transport area (LATA) of 356. Zip code 53538 has a population of 18,468 as of the 2010 census.