Tag: 331 area code

The 331 Area Code: History, Location, and Facts You Need to Know
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The 331 Area Code: History, Location, and Facts You Need to Know

Have you ever wondered about the origin of the area code that appears on your phone screen when making or receiving calls? Well, if you are in the United States, you might have noticed the area code 331 popping up on your device. Here's everything you need to know about the 331 area code, including its history, location, and interesting facts. What is the 331 Area Code? The 331 area code is a telephone area code that was created on August 3, 2007. It is an overlay of the 630 area code, which covers a large portion of Chicago's western suburbs in Illinois. An overlay is an additional area code that is introduced to the same geographic area as an existing area code. The purpose of an overlay is to provide additional phone number options without requiring people to change thei...