List of All Area Codes in Illinois | |||
|---|---|---|---|
| Map Key | Area Code Number | ||
| Area Code 217 | |||
| Area Code 224 / Area Code 847 | |||
| Area Code 309 | |||
| Area Code 312 / Area Code 872 | |||
| Area Code 331 / Area Code 630 | |||
| Area Code 447 | |||
| Area Code 464 / Area Code 708 | |||
| Area Code 618 | |||
| Area Code 730 | |||
| Area Code 773 / Area Code 872 | |||
| Area Code 815 / Area Code 779 | |||