According to @TheGoodISIS, Iran’s nuclear weapon program included putting a nuclear bomb on a Shahab-3 missile. This type of missile now has a range of 2000 km, due to the use of Multiple Reentry Ballistic Missile technology.
And as I stated previously, Iran probably has working nuclear bombs already. This is the likely explanation for their sudden increase in aggressive behavior that began May 7 of 2019. Look for an announcement from Iran on their nuclear program soon, perhaps in May of 2020.
Right now Iran has close associates of the Supreme Leader, generals of the IRGC, and members of Parliament dropping dead from corona. They’re going to be a bit preoccupied for the foreseeable future.