No, not really: even if you could block all the known tor relays there are still the bridges that are exactly meant for this situation: bridges are like normal relays but their full list is not disclosed so it shouldn&#x27;t be possible to block them entirely.
This is probably what he has been using.<p><a href="https:&#x2F;&#x2F;www.torproject.org&#x2F;docs&#x2F;bridges" rel="nofollow">https:&#x2F;&#x2F;www.torproject.org&#x2F;docs&#x2F;bridges</a>