Area code 847 serves the northern suburbs of Chicago, Illinois, including cities such as Evanston, Skokie, Schaumburg, Waukegan, and Arlington Heights. It was created in 1996 from a split of area code 708 to accommodate the rapid suburban expansion in the area. In 2002, area code 224 was introduced as an overlay, and ten-digit dialing became mandatory. The 847 region is known for its blend of upscale residential neighborhoods, corporate headquarters, and retail centers. It encompasses some of the most economically vibrant communities in the state. The 847 code remains a prestigious and recognizable identifier in the greater Chicago area, often associated with affluence and suburban success.