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Illinois currently utilizes 15 area codes. When first established by AT&T and the Bell System in 1947, 217 covered central Illinois, 312 covered the Chicago metropolitan area, 618 covered southern Illinois including East St. Louis and Carbondale, and 815 covered northern Illinois except Chicago
14 sie 1998 · List of all area codes in North Chicago, IL. North Chicago, IL area code map, list, and phone lookup.
773: Chicago, covers most of the geographical area of Chicago except the downtown Chicago Loop, which is in area code 312. 815/779: Northern Illinois outside of the immediate Chicago area including Joliet, Kankakee, LaSalle, DeKalb, and Rockford. Area code 815 was overlaid with area code 779 in 2007.
28 lut 2024 · Area code: The area code is the first three digits of a US phone number and is used to identify a specific geographic region within the country. It helps route calls to the correct destination. Here are some examples of US area codes: 212 for New York City, 312 for Chicago, and 415 for San Francisco.
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 codes list for the United States, state Illinois. Reverse phone lookup, search by area code or region. Local time and map of Illinois
12 mar 2024 · US phone number example. Wondering how to call a US phone number with a country code? It’s pretty simple. In the US, phone numbers are typically structured with a three-digit area code followed by a seven-digit local number. Here’s a United States phone number example, (702)-234-5566
