The Doomsday plane is a "third-generation" Airborne Command Post operated by the Russian Air Force, based on the Ilyushin Il-96-400 commercial aircraft airframe.
The aircraft is apparently newly-built, as it was reported by the Il-96 production plant, Voronezh Aircraft Production Association, which produced this aircraft. Doomsday plane was delivered on 1 August 2016.
Aircraft of comparable role, configuration and/or era
References
Doomsday plane (Russia) Wikipedia(Text) CC BY-SA