IMO they’d say that explicitly if it was the case. In reality I bet lots of people searched for those individual terms and linking a combo back to a pair of /2

IMO they’d say that explicitly if it was the case. In reality I bet lots of people searched for those individual terms and linking a combo back to a pair of /24s seems iffy to me. Why can’t they link it back to his exact IP? If the answer is that Google and Facebook have logs and the ISP doesn’t, that’s another whole conversation, especially if they can be linked back to a specific individual like in this case. I doubt anyone would be ok with having a lifetime search history.