Area Code 217 History - Illinois

Significant events for area code 217

1947 One of the four original area codes for Illinois. It covers south central Illinois. It has never been split or overlaid in total.
1951 A boundary shift moved portions of the southern part of 217 into 618 .
1957 Area code 309 was created with 309 covering the southwestern area of 815 and part of northern 217 .