Amazing how ignorant your guys are about your favorite "encyclopedia".
Some of the servers are in
Tampa, some are in
Amsterdam, and some are in
Seoul.
PS--the
Wikitech hasn't been updated substantially in months/years, so there
are probably other servers elsewhere.
They use
Squid. A lot. There's probably no practical way in hell to figure out where
a chunk of data is in a system like this at any given moment.