TOI
From The RadioReference Wiki
TOI is an abbreviation for "Target Of Interest". -- An aircraft that has strayed into a restricted space, or more commonly, during an exercise, an aircraft selected by a controller to use as a practice for tracking
TOI is an abbreviation for "Target Of Interest". -- An aircraft that has strayed into a restricted space, or more commonly, during an exercise, an aircraft selected by a controller to use as a practice for tracking