166 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was formed at Lipson, Plymouth in August 1942 with two batteries. The Regiment served with Anti-Aircraft Command for its entire existence. 166 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was disbanded in May 1945 at Milford Haven, Pembrokeshire.
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.
|Aug 42||Formed||Plymouth, Devon, UK|
|Aug 42||8 Anti-Aircraft Division, 55 Anti-Aircraft Brigade||Plymouth, Devon, UK|
|Aug 43||3 Anti-Aircraft Group, 45 Anti-Aircraft Brigade||South West, UK|
|Aug 44||3 Anti-Aircraft Group, 61 Anti-Aircraft Brigade||South Wales, UK|
|May 45||Disbanded||Pembrokeshire, UK|
|Aug 42||549 (Mixed), 555 (Mixed)|
|May 43||549 (M), 555 (M), 580 (M)|
|Mar 45||549 (M), 555 (M)|