US-ZIP

Your Primary Information Source for Area Code Data
Area Code 309
(IL, US)
 
 
309 Area Code Basic Information
Area Code 309
Location IL
Country US
In Service Date 1957-01-01
Service Length 69 years
Overlay Area Code? Yes
Overlay Area Codes 309  861 
Parent Area Code N/A
Time Zone C
Map 577
Area code in jeopardy? No

Outbound Dialing Information

The following section explains how to dial outbound numbers from this area code.