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Mount Prospect, IL is currently using two area codes 224 and 847. Mount Prospect, 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 Mount Prospect, 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 Mount Prospect 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 Mount Prospect, 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, Mundelein, Niles, North Chicago, 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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