"The war games, dubbed “Great Prophet 6”, include the testing of short, medium and long-range missiles," Commander Amir Ali Hajizadeh, Head of the elite forces' aerospace unit, was quoted as saying by the Sharq daily.
The Islamic Republic, which is locked in a dispute with the West over its nuclear activities, regularly announces advances in its military capabilities in a bid to show its readiness for any attack by Israel or the United States.
Iran, which denies it is developing nuclear weapons, says it has a wide range of missiles, some capable of striking Israel and US Middle East bases.
Hajizadeh said the exercise, to be carried out on land and at sea, was a "message of peace and friendship to countries of the region," adding that the war games were not a threat to anyone.
Iran has said it would respond to any attack by targeting US interests in the region and Israel, and could close the Strait of Hormuz, the strategic shipping lane by which about 40% of the world's traded oil leaves the Gulf region.