Area code 309
Area code 309 is a telephone area code in the North American Numbering Plan. It serves Illinois, the United States.
- 309area code
- ILIllinois
- UScountry
- 1-Jan-57in service
How to dial a 309 number
From within the United States and Canada, dial 1, then 309, then the seven-digit number. From another country, dial your international access code, then +1 309 and the seven-digit number.
Area code 309 covers the same territory as 861. When several area codes share one area like this, it is called an overlay.
Other area codes in Illinois
217, 224, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 861, 872
Frequently asked questions
Where is area code 309?
Area code 309 serves Illinois, the United States.
What is the country code for a 309 number?
Numbers with North American area codes use the country calling code +1.