The North Korean KN-08 missile appears to be an IRBM.
The KN-08 was first shown on the military parade in 2012. It is likely, that the missiles on the parade were mock-ups. They appeared to be a solid fueld three-stage missiles. Reportedly it has a range of about 5000 km.
In 2015, a different version was shown on parade. This time, the design appears to have been changed to a two stage rocket, which has been designated KN-14.
The KN-08 and KN-14 designators are western designations. The North Korean name of the missiles is not known.
Flight tests of this missile have not taken place yet, although ground tests of the stages have been reported.