Contact at spamhaus to ASK for a DROP listing ?

Hi, I've seen many threads of delisting requests here, and this is NOT one. I happen to be tech contact for an unused allocated block that has been recently hijacked. I have no means to actually route it now, so I guess the best course of action is to list it in DROP. On pourpose. If anyone can help me on that, or provide advise on a better course of action, I'm all ears :) TIA, -- Carlos G Mendioroz <tron@acm.org>