The new 730 area code has been added in Southern Illinois. Illinois Commerce Commission If you sign up for telephone service in southern Illinois, don’t be surprised if your new phone number doesn’t ...

A new 730 area code overlaying the current 618 area code will be introduced in southern Illinois next year, the Illinois Commerce Commission announced Wednesday. The new area code addresses the ...

An additional area code will roll out in southern Illinois in mid-2023. According to the Illinois Commerce Commission, the new 730 area code will "overlay" the existing 618 area code, which will ...