I misread your post. I looked into my script and I actually used ip2location as a source for IP ranges. However, I can’t seem to find a way to download them (at least without an account) in csv file. Most likely they changed that. Or maybe I just copied them from the page by hand (pro tip just mark first cell, then go down to the end of the table and while holding SHIFT mark the last one).
I can find where I found it, because that was first and last time I dealt with *.dat files, but I script makes line look like this:
1.0.1.0 - 1.0.3.255 , 000 , china ban ip range from ip2location
with spaces and all.
It seems to work. If anyone wants a China ban list or the script, let my know with reply.
I don’t know how much extra memory my qBittorrent uses with that list (718 ranges/lines), but as a reference with 1427 torrents it uses ~8GB of RAM.