The area code 847 is located in Arlington Heights, Illinois.
Area code 847 serves Arlington Heights, Illinois, and much of the northern Chicago suburbs in northeastern Illinois. Centered northwest of Chicago, this Numbering Plan Area covers busy residential and business hubs, including shopping, corporate campuses, and healthcare centers. Arlington Heights sits in a prime spot near major highways and Metra rail, making 847 phone numbers common for commuters and local businesses. The region follows Central Time (CT) and uses ten-digit dialing due to an overlay.
Major communities covered by 847 include:
Established in 1996 as a split from 708, 847 later gained the 224 overlay, so both area codes serve the same places and require ten-digit dialing. The 847/224 area is home to well-known landmarks like Six Flags Great America (Gurnee), Naval Station Great Lakes (North Chicago), and Northwestern University’s Evanston campus. This area code spans key retail and employment centers, such as the Woodfield area in Schaumburg, making it a common prefix for local companies. “Area code 847 was created in 1996; area code 224 was added as an overlay in 2002.” — North American Numbering Plan Administration (NANPA)
In short, area code 847 anchors Arlington Heights and nearby Chicago suburbs, offering broad coverage for homes, schools, and businesses. If you see a phone number with 847 (or 224), it likely traces to northern Cook and Lake County communities. Reliable service, easy access to transit, and a mix of neighborhoods and attractions make this one of Illinois’ most recognized suburban area codes.