What are the demographics of area code 618?

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  • 1 month ago

    Area code 618 is the telephone area code serving southern Illinois. Some of the main cities in 618 include Carbondale, Cairo, Belleville, East St. Louis, Edwardsville, Marion, O'Fallon, Alton, Mt. Vernon, Centralia, Herrin, Salem, Metropolis, Fairview Heights, and Collinsville.

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