Echo-class submarine Ships Echo II class — significant dates

| _ | Shipyard | Laid_down | Launched | Commissioned | Fleet | Status_ |
|---|---|---|---|---|---|---|
| K-135 | SEVMASH, Severodvinsk | February 27, 1965 | July 27, 1967 | November 25, 1966 | Northern | Decommissioned 1988 for scrapping |
| K-94 K-204 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | March 20, 1965 | May 20, 1966 | December 27, 1966 | Pacific | Decommissioned 1992 for scrapping |
| K-108 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | July 24, 1965 | August 26, 1966 | March 31, 1967 | Pacific | Decommissioned 1990 for scrapping |
| K-7 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | November 6, 1965 | September 25, 1966 | September 30, 1967 | Pacific | Decommissioned 1990 for scrapping |
| K-23 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | February 23, 1966 | June 18, 1967 | December 30, 1967 | Pacific | Decommissioned 1992 for scrapping |