Tor (not TOR) uses directory servers to keep track of middle and exit nodes. You can get the list directly or via a variety of front-ends. See https://www.tor

Tor (not TOR) uses directory servers to keep track of middle and exit nodes. You can get the list directly or via a variety of front-ends. See https://www.torproject.org/docs/faq-abuse.html.en#Bans https://www.torproject.org/docs/faq-abuse.html.en#Bans