183 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was formed at Datchet in October 1942. The Regiment served with Anti-Aircraft Command until moving to Antwerp with 103 Anti-Aircraft Brigade in March 1945. 183 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) 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.
| Oct 42 | Formed | Datchet, Buckinghamshire, UK | |
| Oct 42 |  |
1 Anti-Aircraft Group, 38 Anti-Aircraft Brigade | South East England |
| Jan 43 | |
2 Anti-Aircraft Group, 38 Anti-Aircraft Brigade | South East England |
| Sep 44 | |
1 Anti-Aircraft Group, 5 Anti-Aircraft Brigade | Southern England |
| Mar 45 |  |
21 Army Group, 103 Anti-Aircraft Brigade | Antwerp, Belgium |
| Jun 45 | Disbanded |
Batteries
| Nov 42 | 564 (Mixed), 591 (Mixed), 608 (Mixed) |
| Feb 43 | 564 (M), 591 (M), 608 (M), 640 (M) |
| Nov 44 | 564 (M), 591 (M), 608 (M) |