The title sounds rather alarming. In reality, this is one mobile ISP blocking archive.org as part of its parental controls. I can't help but wonder if this is the author's first exposure to ISPs' content blocking? Still, I'm curious as to the logic (if any) behind targeting archive.org - is it because it allows filters to be bypassed, or was it in error? Or something else?
Edit: also, "parental control" is not really a good description for something that is active by default for anyone regardless of their age. It is quite literally a case of "nanny ISP".