142 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was formed at Buddenhall, Coventry in December 1941. The Regiment served in Anti-Aircraft Command for the whole of its war. 142 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was considered a War Formed Regiment in January 1947 at Whitchurch, Bristol and re-designated as 96 (Mixed) 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.
| Dec 41 | Formed | Coventry, West Midlands, UK | |
| Dec 41 |  |
11 Anti-Aircraft Division, 67 Anti-Aircraft Brigade | Birmingham, UK |
| Jun 42 | |
11 Anti-Aircraft Division, 34 Anti-Aircraft Brigade | Birmingham, UK |
| Oct 42 |  |
4 Anti-Aircraft Group, 34 Anti-Aircraft Brigade | Birmingham, UK |
| Sep 44 | |
1 Anti-Aircraft Group, 37 Anti-Aircraft Brigade | East Anglia, UK |
| Dec 44 | |
9 Anti-Aircraft Group, 37 Anti-Aircraft Brigade | East Anglia, UK |
Batteries
| Dec 41 | 487 (Mixed), 488 (Mixed), 492 (Mixed), 534 (Mixed) |
| Jan 42 | 477 (Mixed), 488 (Mixed), 492 (Mixed), 534 (Mixed) |
| May 44 | 477 (M), 488 (M), 534 (M) |
| Nov 44 | 464 (M), 477 (M), 488 (M) |