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Lookup area code details: major cities and timezone. View the area code map in Illinois. Find the name of any phone number in area code Area code is found in the US state of Illinois. Primarily servicing the city of Chicago (population: ), area code covers 1 county of Illinois. Located in the Central time zone, area code is on the same time as Chicago, IL. Area code is the telephone area code for downtown Chicago, which includes the Chicago . Map of Illinois area codes at North American Numbering Plan.

Location and cities for area code , map, time zone, overlay codes and related info. Area Code Details, Timezone and Map. Area Code is in Illinois and covers square miles. Area Code contains 40 non-unique postal area. ZIP Code Street Maps. Area Code Services. zipcodes, Area Code Lookup. navline. Lookup any area code or prefix (NPA/NXX) in our database using our FREE.

Area Code with detailed information about Area Code including location , places and history. overlay of of both and Illinois Area Code Map. area code map - List of country area codes - La quinta area code. Table of all North American area codes including area code maps. Idaho, / Illinois - area code map, / / / Area Codes Map. IL - Illinois. Follow these directions to save the map above to your computer. PC Users - Right click on the image and follow the directions.