Ryazan, a Project 667BDR/Delta III submarine has been withdrawn from service. It was the last submarine of this class in service. Ryazan took part in the strategic forces exercise in 2019, launching its missile from the Sea of Okhotsk to the Chizha test site (reportedly, it was supposed to launch two missiles).

All other Project 667BDR submarines had been withdrawn from service by 2018.