Understanding the Chicago Area Code: A Guide to Identifying and Using the Right Code

the Chicago Area Code,If you’re planning to make a phone call or send a text message to someone in the Windy City, it’s important to understand the Chicago area code. This three-digit code is used to identify a particular geographic region within the city and its suburbs. In this guide, we’ll help you navigate the Chicago area code and ensure that you’re using the right code for your communication needs.

What is the Chicago Area Code?

The Chicago area code is 312, which covers the downtown area of the city. However, due to the growing population and the increasing demand for phone numbers, two additional area codes were added to the region: 773 and 872. The 773 area code covers the north, northwest, and west sides of the city, while the 872 area code overlays both the 312 and 773 area codes.

Identifying the Right Area Code

When making a phone call or sending a text message, it’s essential to identify the correct area code for the person you’re trying to reach. The easiest way to determine the area code is by looking at the phone number itself. All phone numbers in the Chicago area have ten digits, including the area code.

If you’re unsure which area code to use, you can also do a quick online search for the person’s phone number or address to confirm their location. You can also ask the person directly for their area code if you’re unsure.

Using the Chicago Area Code

When making a local call within the Chicago area, you only need to dial the seven-digit phone number without the area code. However, if you’re making a call outside the Chicago area, you’ll need to include the area code. For example, if you’re calling someone in the neighboring suburb of Oak Park, which has an area code of 708, you’ll need to dial 708 followed by the seven-digit phone number.


Understanding the Chicago area code is crucial when it comes to communicating with people in the Windy City and its suburbs. By familiarizing yourself with the different area codes and knowing how to use them, you can ensure that your calls and messages reach their intended recipients without any issues. Remember to always double-check the area code before making a call to avoid any confusion or misdialing.




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