The area code 618 is located in Alton, Illinois.
Area code 618 serves the southwestern region of Illinois, with Alton as one of its notable cities. Established in 1947, this area code encompasses several communities, including:
In addition to its urban centers, the area is home to the stunning Mississippi River, which plays a vital role in the region's history and economy. Alton is also known for the historic Pere Marquette Park, offering beautiful outdoor spaces and scenic views. As an interesting fact, Alton is famous for its well-preserved historic homes, many of which date back to the 19th century, showcasing the rich heritage of this charming area.