Belleville Area Codes, Illinois, Unites States

How to call Belleville, Illinois?

Belleville has 1 area code. To call Belleville you need to dial the Unites States country code (+1) and the following area code:

618

How to know if I'm receiving calls from Belleville, Illinois?

You are receiving calls from Belleville when the phone number starts with the following combination:

1-618

Other area codes in Unites States