(815) ###-####

815 Area Code in Illinois

Enter the last 7 digits to find that number in Belvidere, Illinois.

Information for Area Code 815

Country: United States

State: Illinois

Cities in Area: Belvidere, Crystal Lake, DeKalb, Freeport, Joliet, Kankakee, Loves Park, Machesney Park, McHenry, Rockford, Romeoville, Woodstock

Where is Area Code 815?

Area code (815) is in the state of Illinois, and there are 12 cities in this area code.