According to latest informations from Karl-Heinz Beständig (thank you!) there are some Anchorages temporary out of service. So there are currently no buoys available at:
It seems that there are some disagreements between the Concessionaires and the Port Authorities. The Licenses for this Anchorages are still valid, so there maybe buoys available again in near future.
In my Map this Anchorages are marked with a transparent area inside the borders, so that it is easy to keep an overview...