Back Area codes 618 and 730 English Indicatif régional 618 French Prefix telefonic 618 (Statele Unite ale Americii) Romanian 北美電話區號618 Chinese
Area code 618 is an area code for Illinois. It was one of the first area codes created in 1947. It covers the entire southern portion of Illinois, consisting of cities such as Belleville, Fairview Heights, Carbondale, Cairo, Edwardsville, Collinsville, and Granite City. It will be overlaid by 730 in July 7, 2023, making it the last area code of Illinois to have an overlay.[1]
- ↑ "Area Code 730 - Details, official location, official service date, history and time zone". www.areacodehelp.com. Retrieved 2022-10-10.