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:
618How 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:
1-618Other area codes in Unites States
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