Everything You Need to Know About Chicago Area Codes

Discover the area codes of Chicago and why they matter in this quick guide.

136 views

Chicago has multiple area codes due to its large population. The primary area codes are 312 and 773. Additionally, area codes 872 and 464 are used as overlays to accommodate additional phone numbers.

FAQs & Answers

  1. What are the main area codes in Chicago? The main area codes in Chicago are 312 and 773.
  2. What are area code overlays? Area code overlays are additional area codes that cover the same geographic area to provide more phone numbers.
  3. Why does Chicago have multiple area codes? Chicago has multiple area codes due to its large population and high demand for phone numbers.
  4. What are the newer area codes used in Chicago? The newer area codes used in Chicago include 872 and 464.

Watch More

For more insights on Chicago and its telecommunication systems, check out our videos on local history and city statistics.

  1. What Are the Area Codes in Michigan? Discover 313, 248, 517, and More Explore Michigan's area codes including 313 for Detroit, and others like 248, 517, 616, and 734. Learn more about local dialing.