This may cause address conflicts once the addresses are used by the purchasing entity.

It is probably best to implement a plan to move the addresses to a new block.

There is no need to move those addresses, they are not in the block that has been sold.

Since a month or two we are routing 44.192.0.0/10 to internet (amazon) but this still causes issues as over 4000 systems in the 44.224.0.0/15 block have not yet been renumbered. (I get occasional complaints about systems no longer being reachable)

Rob