Kamov 25, NATO reporting name Hormone, was developed in the late 1950s, first flight in April 1963, production from 1965 to 1977, numerous variants with the main variant being anti-submarine.
February or March 1972, Ka-25 shows-off for the crew of the USS Springfield (CLG-7), Mediterranean Sea, silent U.S. Navy (USN) film:
February or March 1972, silent USN film of Ka-25s flying near the coast of Greece, notice the Soviet cameraman taking pictures of the U.S. cameraman:
I have not found any official information as to when or if the Russian navy has stopped using the Ka-25 (although it is obvious the Ka-25 has been replaced with the Ka-27, which is still in use). It appears that the Ka-25s of Bulgaria, former Yugoslavia-Serbia, and Viet Nam, are now serving as ‘gate guards’. India purchased at least seven ex-Soviet Ka-25s in the 1980s, apparently they are still in use. Apparently, the Syrian navy also still operates the Ka-25? Silly-vilian (civilian) versions are still in operation.
Cold War Finale: SOVIET Ka-27 HELIX BOARDS U.S. AIRCRAFT CARRIER!
Cold War Battle Damage: THE HIND-END OF DESERT STORM
Cold War Helicopters: