Echo-class submarine Ships Echo II class — significant dates

| _ | Shipyard | Laid_down | Launched | Commissioned | Fleet | Status_ |
|---|---|---|---|---|---|---|
| K-125 | SEVMASH, Severodvinsk | September 1, 1964 | September 11, 1965 | December 18, 1965 | Northern | Decommissioned 1991 for scrapping |
| K-48 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | April 11, 1964 | June 16, 1965 | December 31, 1965 | Pacific | Decommissioned 1990 for scrapping |
| K-128 K-62 | SEVMASH, Severodvinsk | October 29, 1964 | December 30, 1965 | August 25, 1966 | Northern | Decommissioned 1990 for scrapping |
| K-56 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | May 30, 1964 | August 10, 1965 | August 26, 1966 | Pacific | Decommissioned 1992 for scrapping |
| K-131 B-131 | SEVMASH, Severodvinsk | December 31, 1964 | June 6, 1966 | September 30, 1966 | Northern | Decommissioned 1994 for scrapping |
| K-10 | Leninskiy Komsomol Shipyard, Komsomolsk-na-Amure | October 24, 1964 | September 29, 1965 | October 15, 1966 | Pacific | Decommissioned 1989 for scrapping |