> Perhaps a more interesting question, and one which I cannot quickly answer
> (nor am I going to go pinging huge swaths of the public internet), is are
> there any hosts in any version of HOSTS.TXT that are still on the public
> internet in the same location?
>

Hard to answer the question.  Same physical location?  Same hardware?
mit-prep.arpa is prep.ai.mit.edu which is a CNAME to ftp.gnu.org  Theseus's
ship?