730 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 730 area code is an overlay serving southern Illinois, including the Metro East suburbs of St. Louis and the Carbondale region.…
447 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 447 area code is an overlay serving central Illinois, including the state capital of Springfield, the university city of Champaign-Urbana, and…
309 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 309 area code serves west-central Illinois, covering Peoria, the Bloomington-Normal area, and the Illinois side of the Quad Cities. In service…
779 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 779 area code is an overlay serving northern Illinois, layered over the 815 code across Rockford, Joliet, and the counties beyond…
217 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 217 area code serves central Illinois, covering the state capital of Springfield along with Champaign-Urbana, Decatur, and Danville. One of the…
618 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 618 area code serves southern Illinois, covering the Metro East region across the Mississippi River from St. Louis along with Carbondale…
708 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 708 area code serves the southern and near-west suburbs of Chicago in Cook County. The first suburban Chicago code, created in…
464 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 464 area code is an overlay serving the southern and near-west suburbs of Chicago, layered over the 708 code in Cook…
815 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 815 area code serves northern Illinois outside the Chicago metro, covering Rockford, Joliet, DeKalb, and a wide band of counties across…
331 Area Code: Location, Time Zone, Major Cities & Scam Alerts
The 331 area code is an overlay serving the western suburbs of Chicago, layered over the 630 code across DuPage County and…