Illinois Reverse Phone Search any number directly online. This guide will provide everything you need to know about how to perform a reverse phone search in Illinois and across the U.S.
State: Illinois
Population: 12.74 million (2018)
Number of area codes: 13
How to perform a reverse phone search in Illinois
The use of a search service to perform a reverse phone search is by far the easiest and quickest way to perform an Illinois reverse phone search. This can be done completely online by simply inputting the complete number into the search field below. The system will then scan for that number and revel search results as to where and who owns that phone number. To get started simply input the area and complete number below to learn a lot more about that telephone number. Cell or landlines will work.
Illinois area codes
History of area codes and phone systems in Illinois go back to 1947. All of Chicago was under the 312 area code with northern Illinois having area code 815, central Illinois having 217 and southern Illinois under 618. it wasn't until 1966 that area code 309 was split to cover western central IL. To read the full history of area codes in IL you can go here.
Area Code
Location
217
Central Illinois
224
North and northwest burbs of Chicago
309
Central-Western Illinois
312
Central city area
331
West suburbs of Chicago
618
Southern Illinois including Carbondale and Metro East region of St. Louis
630
West Suburbs of Chicago
708
South suburbs and inner west suburbs
773
Most f Chicago except downtown
779
Northern Illinois
815
Northern Illinois
847
North and northwest suburbs of Chicago
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