618 area code
Area code 618 is in Illinois, United States, in the Central time zone. It covers Belleville, Carbondale, Collinsville, East Alton, East Saint Louis, Edwardsville and more.
State / Province
Illinois (IL)
Country
United States
Region
Midwest
Time zone
Central
Current local time
—
Approx. location
38.566, -89.9326 ↗
How to dial a 618 number
- National format
- (618) 555-0100
- International (E.164)
- +1 618 555 0100
- From abroad
- +1 618 …
Cities & areas in the 618 area code
8 known locations — a selection:
Belleville
Carbondale
Collinsville
East Alton
East Saint Louis
Edwardsville
Granite City
O'Fallon
About area code 618
Area code 618 is one of the North American Numbering Plan (NANP) codes serving Illinois. In the NANP a full number looks like +1 (618) NXX-XXXX: the +1 is the country code for the US and Canada, 618 is the area code, and the remaining seven digits identify the specific line. A call is charged by your own carrier's plan, not by the area code itself.