SPRINGFIELD - The Illinois Commerce Commission has announced a new area code is coming to southern Illinois. The new 730 area code will “overlay” the existing 618 area code to address the depletion of prefixes available for assignment within the region. The first prefix in the new area code will not be introduced until after July 7, 2023. The 618 area code covers all or parts of 37 counties in Illinois and includes communities such as Alton, Belleville, Cairo, Carbondale, Centralia, E. St. Louis, Edwardsville and Marion. The 618 area code is one of the original, eighty-six area codes in the United States, assigned by Bell Laboratories in 1947. It has not undergone any substantive changes to its boundaries since then. NeuStar (now Somos) under contract by the Federal Communications Commission (FCC) to administer the nation’s telephone numbering resources, originally filed a petition on behalf of the Illinois Telecommunications Industry seeking a new area code for
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