117 Heavy Anti-Aircraft Regiment RA (TA) was formed at Weybourne Practice Camp in December 1940. The Regiment served in Anti-Aircraft Commanduntil converting to infantry in January 1945. 117 Heavy Anti-Aircraft Regiment RA (TA) was re-organised in January 1945 as 622 Infantry Regiment RA (TA). It was disbanded in June 1945.
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 40 | Formed | Weybourne, Norfolk, UK | |
| Dec 40 |  |
10 Anti-Aircraft Division, 62 Anti-Aircraft Brigade | Yorkshire, UK |
| Oct 41 |  |
4 Anti-Aircraft Division, 33 Anti-Aircraft Brigade | Liverpool, Merseyside, UK |
| Dec 41 | |
4 Anti-Aircraft Division, 70 Anti-Aircraft Brigade | North West England |
| May 42 | |
4 Anti-Aircraft Division, 33 Anti-Aircraft Brigade | Liverpool, Merseyside, UK |
| Aug 42 |  |
Orkney & Shetland Defences (OSDEF) | Orkney, UK |
| Jan 45 | Became 622 Infantry Regiment RA |
Batteries
| Dec 40 | 369, 370, 371 |
| Jan 41 | 369, 370, 371, 392 |
| May 42 | 358, 369, 370, 371, 392 |
| Feb 44 | 358, 369, 370, 371 |