618 Area Code

Area code 618 is an area code that covers Southern Illinois.

Illinois has area codes of 217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 872.

Counties that Use 618 Area Code

Major Cities that Use 618 Area Code

All Cities & Towns that Use 618 Area Code

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Where is 618 area code?

The following map shows the coverage of 618 area code. The coverage area is shown in green.

Area code map of the entire U.S.