154 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was formed in West Derby, Liverpool in March 1942. It became a non-mixed Regiment in August 1945. The Regiment served with Anti-Aircraft Command for its entire war. 154 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was considered a War Formed Regiment in January 1947 and re-designated as 110 Heavy Anti-Aircraft Regiment RA in April that year.
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.
| Mar 42 | Formed | Liverpool, Merseyside, UK | |
| May 42 |  |
4 Anti-Aircraft Division, 33 Anti-Aircraft Brigade | Liverpool, Merseyside, UK |
| Oct 42 |  |
4 Anti-Aircraft Group, 33 Anti-Aircraft Brigade | Liverpool, Merseyside, UK |
| Oct 43 | |
2 Anti-Aircraft Group, 35 Anti-Aircraft Brigade | South East England |
| Feb 45 | |
9 Anti-Aircraft Group, 37 Anti-Aircraft Brigade | East Anglia, UK |
| Aug 45 | Re-organised as a non-mixed regiment |
Batteries
| Mar 42 | 522 (Mixed), 526 (Mixed), 552 (Mixed), 560 (Mixed) |
| Jan 45 | 522 (M), 526 (M) |
| Feb 45 | 522 (M), 526 (M), 539 (M) |