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North Chicago, IL is currently using two area codes 224 and 847. North Chicago, IL utilizes an area code overlay in which
area codes 224 and 847 serve the same geographic area. The area code overlay which is in use in North Chicago, IL today was established in 2002 at which time area code 224 was created as an overlay of area
code 847. Area code 847 was originally established in 1996. Ten digit dialing (area code + seven digit number) is necessary in North Chicago because two different homes in the same geographic area can have
the same seven digit phone number but each would have a different area code.
Today, in addition to North Chicago, IL, area codes 224 and 847 serve the larger communities of Algonquin, Arlington
Heights, Buffalo Grove, Carpentersville, Des Plaines, Elgin, Elk Grove Village, Evanston, Glenview, Gurnee, Highland Park, Hoffman Estates, Lake Forest, Lake in the Hills, Libertyville, Morton Grove, Mount
Prospect, Mundelein, Niles, Northbrook, Palatine, Park Ridge, Rolling Meadows, Round Lake Beach, Schaumburg, Skokie, Vernon Hills, Waukegan, Wheeling, Wilmette and Zion, in addition to many smaller
communities in northeastern Illinois. |
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