Illinois Area Codes
Here is the current list of area codes in the state of Illinois. Find out all Illinois area codes below.
| Area Code | State | Specific Location |
|---|---|---|
| 618 | Illinois | Alton |
| 618 | Illinois | Belleville |
| 618 | Illinois | Carbondale |
| 618 | Illinois | Centralia |
| 618 | Illinois | Mount Vernon |
| 630 | Illinois | Auroa |
| 630 | Illinois | Naperville |
| 708 | Illinois | Chicago Heights |
| 708 | Illinois | Evergreen Park |
| 708 | Illinois | Tinley Park |