Area code 579 is an overlay for 450 in southwestern Quebec, Canada, serving cities like Laval, Longueuil, Terrebonne, and Saint-Jean-sur-Richelieu — essentially the suburban ring surrounding Montreal. Introduced in 2010 to meet growing demand, it supports a region of rapid population growth, strong French-Canadian heritage, and a bilingual business environment. The 579 region features a mix of residential expansion, industrial parks, retail centers, and logistics operations that benefit from proximity to the Montreal metro. The local economy includes aerospace, education, agri-food, and tech, with Laval in particular emerging as a scientific and commercial hub. A 579 number affirms local presence in the vibrant and growing Quebec corridor, ideal for businesses navigating both French and English-speaking audiences in a multicultural marketplace.