Area code 217 covers central Illinois, including the state capital, Springfield, as well as Champaign, Decatur, and Urbana. One of the original area codes created in 1947, 217 is steeped in political and educational significance, serving the University of Illinois at Urbana-Champaign and key government institutions. In 2021, area code 447 was overlaid to accommodate growth, requiring ten-digit dialing. Despite the overlay, 217 maintains strong historical and cultural relevance, often linked to Abraham Lincoln's legacy and the heartland of American governance and academia.