The Italian wine district of ASTI is located in the Piedmont region of northwest Italy. It is known for its sparkling wines, such as ASTI Spumante, and its still wines, such as Barbera d'ASTI. The area is also home to some of the oldest wineries in Italy, with many of them having been in operation since the Middle Ages. ASTI is one of the most important wine-producing regions in Italy, and its wines are highly sought after around the world.