144 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was formed at Nottingham in January 1942. The Regiment served with Anti-Aircraft Command for its entire war. 144 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was considered a War Formed Regiment in January 1947 and re-designated as 104 (M) 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.
| Jan 42 | Formed | Nottingham, Nottinghamshire, UK | |
| May 42 |  |
2 Anti-Aircraft Division, 66 Anti-Aircraft Brigade | Eastern England |
| Aug 42 | |
2 Anti-Aircraft Division, 50 Anti-Aircraft Brigade | Eastern England |
| Dec 44 |  |
5 Anti-Aircraft Group, 41 Anti-Aircraft Brigade | Lincolnshire, UK |
| Feb 45 | |
5 Anti-Aircraft Group, 30 Anti-Aircraft Brigade | Eastern England |
Batteries
| Jan 42 | 497, 498, 503, 504 |
| Aug 45 | 497, 498, 503 |