Cloudflare hosting F root server
A few days some folks in internet community noticed Cloudflare AS13335 announcing F root server’s routes covering prefix 192.5.5.0/24.
dig version.bind ch txt @f.root-servers.net pic.twitter.com/YLW7hqt170
— Tony Finch (@fanf) April 3, 2017
Above tweet shows that case is clearly not a mistake but rather some sort of arrangement between Cloudflare and ISC (which is responsible for F-root). There was another discussion on DNS-OARC mailing list here. From our bgp.he.net tool, one can analyse route propagation for F root’s AS3557.