The games in the Call of Duty range are as follows:
Call of Duty (PC)
Call of Duty: United offensive - Expansion Pack to CoD (PC)
Call of Duty: Finest Hour (Console)
Call of Duty 2 (PC)
Call of Duty 2: Big Red One (Console)
Call of Duty 3 (Console)
Call of Duty: Roads to Victory (PSP)
Call of Duty 4: Modern Warfare (PC and Console)
Call of Duty: World at War (PC and Console)
(Call of Duty: Modern Warfare 2 - November 10th 2009)
(Call of Duty 7 - November 2010?)