Zip Area Code

Area code 618

Area code 618 is an Illinois area code, in service since 1947.

730 serves the same area as an overlay, so neighbors can have numbers in any of these codes.

Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

It is in the Central Time zone.

In service since
1947
Overlays
730
Local dialing
ten digits; dialing 1 plus ten digits also works
Time zone
Central Time
ZIP codes
319

Map

Map of the 618 area codeThe shaded area shows where 618 numbers are rated, with the neighboring area codes outlined around it.270812217573660636765417314317CollinsvilleBellevilleCarbondaleOlneyMount VernonAltonWaterlooBenton
Approximate 618 coverage, drawn from U.S. Census ZIP code areas and NANPA rate centers. Dashed lines are state borders.

Main cities in area code 618

Overlays and neighboring area codes

Overlay, serving the same area: 730.

Neighboring area codes: 270, 812, 217, 615, 931, 573, 660, 636, 765, 417, 314, 317.

Counties in area code 618

Towns in area code 618

And 330 more towns: every town in Illinois.