One level below Double-A is the High-A level, also known as "Class A+" or "Class A-Advanced". Beginning in 2021, this classification has three leagues: High-A East, High-A Central, and High-A West, which succeed the Carolina League, Midwest League, and Northwest League, respectively, with the Midwest League having previously been a Low-A League and the Northwest League having previously been a short-season league.
This level of play is often a second or third promotion for a minor league player, although a few high first-round draftees, particularly those with college experience, begin at this level.