779 area codeLocation:Crystal Lake, Belvidere, Bradley, Channahon, De Kalb, Dixon, Frankfort, Freeport, Harvard, Joliet, Kankakee, La Salle, Lockport, Loves Park, Machesney Park, Marengo, McHenry, Mendota, Morris, New Lenox, Ottawa, Peru, Plainfield, Pontiac, Princeton, Rochelle, Rock Falls, Rockford, Romeoville, Streator, Sycamore, Wonder Lake, Woodstock
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Reverse Phone Lookup - 779 Phone Number Search
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Illinois Area Code Search
Illinois cities in area code 779. Find out who called you? List of Illinois area codes and reverse phone number lookup. All Area Codes in USA, Canada