IP addresses are transmitted to every website and server you use directly. Otherwise those websites and servers wouldn't know what part of the network you belong to!It's a digital 'I'm here' on the network.Now, if you mean some form of spyware mentioning to LEO that you visited SR and bought drugs? That is extremely unlikely because it implies Big Brother installed the same spyware on every single dongle. Bit of a reach.I think using a PAYG broadband dongle is a excellent idea however. I wouldn't be giving them any real information however. If you need to falsify documents, then do it. An IP address that leads to nowhere is a good thing IMHO.Protip: use a prepaid credit card to pay the bill.