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- Illinois area codes includes 217, 309, 312, 618, 630, 708, 773, 815, 847.
www.whereig.com/usa/area-codes/illinois.html
Downstate, no changes took place from 1957 until 2021, when area code 447 was implemented as an overlay with 217, mandating ten-digit dialing. The remainder of the state switched to ten-digit dialing in October 2021, as a result of the implementation of the 988 Suicide & Crisis Lifeline.
There are two lists that Wirefly provides for the area codes in Illinois. The first table below shows the most populated cities in Illinois with the area codes listed next to them. The next table shows the all the Illinois state area codes by number with the names of the city they are used in.
An Interactive Map of All Illinois Area Codes - September 2024.
This is a list of the area codes in the state of Illinois and the geographic area of each numbering plan area: * 217/447: Central Illinois, and part of Southern Illinois running west from the Illinois-Indiana border through Danville, Effingham, Champaign–Urbana, Decatur, Springfield, Quincy until Illinois' western border with Missouri and Iowa.
Illinois Area Codes St. Louis Rockford Peoria Champaign Decatur East St. Louis Davenport Dubuque As of July 26, 2022 Hannibal Keokuk Burlington Bettendorf 773/872 ...
Find Illinois area codes by city or lookup which cities belong to an area code. Illinois area codes includes 217, 309, 312, 618, 630, 708, 773, 815, 847.
Nov 2, 2023 · Area codes 217 and 447 are telephone area codes in the North American Numbering Plan (NANP) for much of the central part of the U.S. state of Illinois. The numbering plan area (NPA) includes the state capital, Springfield, and Champaign, Urbana, Decatur, Taylorville, Lincoln, Danville, Effingham, Quincy, Rantoul, and Jacksonville. 217 was one ...
