Arlington Heights, Illinois

Where Is Area Code 847?

Area code 847 is in northeastern Illinois, mainly in the Chicago suburbs north and northwest of the city. It serves Arlington Heights and many nearby communities in the collar counties around Chicago. The region is part of the North American Numbering Plan and uses the Central Time Zone.

Area code 847 covers parts of Cook, Lake, McHenry, and Kane counties. Major cities and villages in the 847 area include Arlington Heights, Evanston, Schaumburg, Des Plaines, Waukegan, Elgin, Northbrook, Mount Prospect, and Palatine. The same geographic area also uses overlay area code 224.

This area includes well-known suburban landmarks and major transportation routes. O'Hare International Airport sits next to parts of the 847 region, and Northwestern University is in Evanston, which uses area code 847 and 224. The Lake Michigan shoreline also borders parts of the area, including communities such as Evanston and Waukegan.

History of Area Code 847

Area code 847 began service on January 20, 1996. It was created in a split from area code 708 as demand for new telephone numbers grew in Chicago's northern and northwestern suburbs.

Area code 224 was added as an overlay to 847 on January 5, 2002. That overlay kept the same geographic service area and required 10-digit dialing for local calls in the region. The change reflected continued population growth, business expansion, and rising demand for phone numbers in suburban Cook, Lake, McHenry, and Kane counties.

Key Facts About Area Code 847

• Area code 847 is in Illinois, and Arlington Heights is one of the communities it serves.
• Area code 847 serves the Chicago metropolitan area's northern and northwestern suburbs.
• Area code 847 was created on January 20, 1996, in a split from area code 708.
• Area code 224 overlays area code 847, and the overlay began on January 5, 2002.
• Area code 847 and 224 cover parts of Cook, Lake, McHenry, and Kane counties in Illinois.
• Area code 847 is in the Central Time Zone.
• Northwestern University in Evanston is within the 847 and 224 service area.
• O'Hare International Airport is near the southern part of the 847 region, and many nearby suburbs use this area code.

Frequently Asked Questions

What state is area code 847 in?

Area code 847 is in Illinois.

What major cities use area code 847?

Major cities and communities in area code 847 include Arlington Heights, Evanston, Schaumburg, Des Plaines, Waukegan, Elgin, Northbrook, Mount Prospect, and Palatine.

Is area code 847 a toll-free number?

No. Area code 847 is a geographic area code for northeastern Illinois.