STAUNTON – With new telephone numbers in southern Illinois in high demand, the Illinois Commerce Commission approved the implementation of the new 730 area code to overlay the existing 618 area code region. The 618 area code serves all or part of 37 counties, and includes communities such as Alton, Belleville, Cairo, Carbondale, Centralia, Collinsville, East St. Louis, Edwardsville, Effingham, Granite City, Edwardsville, and Marion, as well as many other smaller communities. Starting on July 7, 2023 , customers in the 618 area code overlay region may be assigned a number in the new 730 area code when they request new service or an additional line. The 730 area code will co-exist everywhere in this region with the 618 area code. Customers receiving the 730 area code will be required to dial 10 digits (the area code and phone number) for all local calls, just as customers with telephone numbers from the 618 area code do today. Telephone customers should know the following
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