schwere Flak-Abteilung 621 (o)

Formed Apr 1943 in Luftgau III with 3 Batterien.

Disbanded Oct 1943:

1./s.621 became 5./226
2./s.621 became 6./226
3./s.621 became 5./335

Reformed Dec 1944 in Luftgau VI with Stab only.

Service:

• 1943 in Hagen under 22. Flak-Division (Stab/Flak-Regiment 183)
• 1944/45 in Luftgau VI