550 Coast Regiment RA was formed as 12 Coast Artillery Group RA at Folkestone with five batteries, in October 1940. It was re-designated 550 Coast Regiment RA in June 1941. RHQ was disbanded in April 1944 with the batteries joining 520 Coast Regiment RA (TA).
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 40||Formed as 12 Coast Artillery Group||Folkestone, Kent, UK|
|Oct 40||Eastern Command||Folkestone, Kent, UK|
|Jun 41||Became 550 Coast Regiment||Folkestone, Kent, UK|
|Dec 42||Folkestone Fire Command||Folkestone, Kent, UK|
|May 41||236, 338, 339 (Folkestone West), 340, 412 (Mill Point)|
|Jun 42||213, 236, 291, 338, 413|
|Jan 43||213, 233, 235, 291, 413|