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Find out the area codes for different regions of Illinois, including Chicago and its suburbs. Learn about the history and current status of overlay plans and ten-digit dialing in Illinois.
Area codes in Chicago, Illinois. Get the area’s map, current time, and prefixes for Chicago.
Chicago, IL has the following Exchanges (NXX) List of all area codes in Chicago, IL. Chicago, IL area code map, list, and phone lookup.
Area code 312 covers the city of Chicago, including downtown and the Loop, and is surrounded by area code 773. Learn about its history, geography, overlay, and popular culture references.
Find the local area code for Chicago, Illinois and learn how to dial it from any country. See the list of Chicago zip codes and the current time in Chicago.
Area code 312 covers the central city of Chicago, Illinois, and includes the Chicago loop extending up to the near north side. The first zip codes, 60601-60607, are assigned for the loop. 60610 and 60611 serve the Gold Coast and Streeterville.
10 mar 2024 · 312 is an area code located in the state of Illinois, US. The largest city it serves is Chicago. Location, time zone and map of the 312 area code. Local time. 7:12:21 AM, Monday 11, November 2024 CST. Time difference to GMT/UTC. Daylight Saving Time 2024 (Summer Time) DST starts on Sunday 10 March 2024, 02:00.
