| Nov 38 | 1/6th Essex Regiment (64 Searchlight Regiment) | West Ham, London, UK |
| Aug 40 | Became RA | |
| Aug 40 | 40 Anti-Aircraft Brigade | Eastern England airfields |
| Aug 43 | 31 Anti-Aircraft Brigade, 5 Anti-Aircraft Group | Eastern England |
| Mar 44 | 50 Anti-Aircraft Brigade, 5 Anti-Aircraft Group | Eastern England |
| Jan 45 | Became 639 Infantry Regiment RA |
Batteries
| Aug 40 | 441, 442, 443 |
