See: https://www.spamhaus.org/sbl/listings/cloudflare.com
SBL529049 172.67.222.85 cloudflare.com 2021-08-02 Selling access to hacked server proxies to cybercriminals: shopsocks5.com
SBL526387 172.67.220.78 cloudflare.com 2021-07-03 Carding fraud site/forum: database-market.shop
SBL525483 172.67.223.219 cloudflare.com 2021-07-01 Spamvertised domain/redirector hosting
SBL525132 172.67.222.222 cloudflare.com 2021-06-16 affiliate spam @getsugarbalance.com
SBL524600 172.67.222.138 cloudflare.com 2021-06-14 Malware distribution @172.67.222.138
SBL520823 172.67.221.126 cloudflare.com 2021-05-22 Spammer hosting
SBL505321 172.67.220.79 cloudflare.com 2021-07-03 affiliate spam @bigcitydating1.club
SBL502088 172.67.222.67 cloudflare.com 2021-02-25 Zoltán Zarka
Spamvertised website
SBL495325 172.67.222.109 cloudflare.com 2020-09-17 Spamvertised website