You could try raising it on the
Sydney Linux User Group's email list (follow the links to the lists). The email list is open to anyone who wants to post and/or receive postings, not just members. If they dont know, then frequently someone there will be able to tell you where to go for the information.
Please dont ask people to reply directly rather than through the mailing list though - such requests are often ignored.
Just out of curiosity - why do you need so many IP addresses?
Regards, Andrew