89 Anti-Tank Regiment RA (TA) was converted from 2nd Battalion The Liverpool Scottish, Queen’s Own Cameron Highlanders (TA) in November 1942 with three batteries. It became a holding unit in September 1945. The Regiment went into suspended animation in March 1946. 89 Anti-Tank Regiment RA (TA) was reconstituted as 655 (Liverpool Scottish) Light Anti-Aircraft/Searchlight Regiment (TA) in January 1947.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Nov 42 | Formed from 2nd Battalion The Liverpool Scottish | UK | |
| Nov 42 | Home Forces | UK | |
| Nov 43 |  |
47 Infantry Division | UK |
| Aug 44 | Home Forces | UK | |
| Oct 44 |  |
55 Infantry Division | UK |
Batteries
| Nov 42 | Q, R, S |
| Jan 43 | 137, 138, 139 |
| Jun 43 | 137, 138, 139, 342 |