Area code 519 serves southwestern Ontario, Canada, including cities such as London, Windsor, Kitchener, and Guelph. Established in 1953 as a split from area code 416, it has since seen overlays with 226 and 548 due to ongoing demand. The region is economically diverse, with strong sectors in manufacturing, education, and agriculture. The 519 code remains closely associated with the southwestern part of the province and is widely used in both urban and rural communities. It’s a longstanding part of Ontario’s telecommunications framework.