What is Area code 618?
'''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, Illinois|Belleville]], [[Fairview Heights, Illinois|Fairview Heights]], [[Carbondale, Illinois|Carbondale]], [[Cairo, Illinois|Cairo]], [[Edwardsville, Illinois|Edwardsville]], [[Collinsville, Illinois|Collinsville]], and [[Granite City, Illinois|Granite City]]. It will be overlaid by 730 in July 7, 2023, making it the last area code of Illinois to have an overlay.<ref>{{Cite web|title=Area Code 730 - Details, official location, official service date, history and time zone|url=https://www.areacodehelp.com/where/area_code_730.shtml|access-date=2022-10-10|website=www.areacodehelp.com|language=en}}</ref> ==References== {{reflist}} [[Category:Area codes in the United States|618]] {{US-stub}}