512 (East Riding) Coast Regiment RA(TA) was formed from a part of the East Riding Heavy Regiment RA(TA), in July 1940. In January 1945, RHQ was converted to 617 Infantry Regiment RA(TA) at Gorleston, Great Yarmouth and the batteries all joined 526 Coast Regiment RA(TA). RHQ was placed in to suspended animation in October 1945 and was reconstituted in January 1947 as 422 (East Riding) Coast Regiment RA(TA).
| Jul 40 | Formed from part of East Riding Heavy Regiment | Spurn Point, Yorkshire, UK |
| Dec 42 | Spurn Head Fire Command | Kilnsea, Yorkshire, UK |
| Jan 45 | Became 617 Infantry Regiment RA(TA) | Great Yarmouth, Norfolk, UK |
Batteries
| Jul 40 | A, B |
| Dec 40 | A, B, 383 |
| Feb 41 | A, B, 350, 383 |
| Apr 41 | 269, 270, 271, 272, 273, 350, 383 |
| Jul 41 | 269, 270, 271, 272, 273, 349, 350, 383 |
| Sep 41 | 193, 269, 270, 271, 272, 273, 349, 350, 383 |
| May 42 | 193, 269, 270, 271, 272, 273, 274, 275, 276 |
| Oct 42 | 193, 269, 271, 272, 273, 274, 275, 276 |
| Jul 43 | 100, 269, 271, 272, 273, 274, 275, 276 |
| Jan 44 | 100, 269, 271, 272, 273, 274, 275, 276, 319, 349, 351, 383, 437, 445 |
