Area codes 815 and 779 - Wikipedia
https://en.m.wikipedia.org/wiki/Area_codes_815_and_779
WebIllinois area codes: 217, 224/847, 309, 312, 331/630, 618, 708, 773, 779/815, 872; North: 353/608, 262: West: 563: Area codes 779 and 815: East: 847/224, 630/331, 708: South: 309/861, 217: Wisconsin area codes: 262, 414, 534/715, 608, 920: Indiana area codes: 219, 260, 317/463, 574, 765, 812/930: Iowa area codes: 319, 515, 563, 641, 712
DA: 59 PA: 72 MOZ Rank: 68