Ballistic missile warheads have flown at these speeds for many years. The term "hypersonic" when it refers to missiles is frustratingly imprecise; hypersonic in

Ballistic missile warheads have flown at these speeds for many years. The term "hypersonic" when it refers to missiles is frustratingly imprecise; hypersonic in the sense you're using it refers to more modern weapons capable of substantial maneuvers and not restricted to a ballistic trajectory. Iran is incapable of producing these types of weapons. Note that plain old ballistic missile warheads are quite challenging to intercept. Past operational systems used nuclear warheads on the interceptors.