United States Area Code # 231

More information on area code number 231 - Specific area code, major cities in the area, with corresponding official city websites

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Area Code # City State Official Website
 231 Muskegon  MI http://www.muskegon-mi.gov/
 231 North Shores  MI http://www.nortonshores.org/
 231 Shelby  MI http://www.shelbytwp.org/

Area code 231 is North Shores, Muskegon, and Shelby - here is North Shores official city website