Tor has been blocked here for the last 10 (or so) years. You have to find and add a couple of bridge servers to get it working, until they get blocked as well, of course.
Noteworthy "I messaged the user my unpublished obfs4 bridge whose OR port is firewalled and the bridge is working so far".
Also, the boxes don't seem to perform a good job in inspecting for protocols tunnelled over HTTPS (https://gitweb.torproject.org/pluggable-transports/httpsprox...).
As a reference - relays https://metrics.torproject.org/userstats-relay-country.html?... - bridges https://metrics.torproject.org/userstats-bridge-combined.htm... - ticket https://trac.torproject.org/projects/tor/ticket/20348
Noteworthy "I messaged the user my unpublished obfs4 bridge whose OR port is firewalled and the bridge is working so far". Also, the boxes don't seem to perform a good job in inspecting for protocols tunnelled over HTTPS (https://gitweb.torproject.org/pluggable-transports/httpsprox...).