Using Shodan, we can find other nodes belonging to the same CDN by searching for "FP6.1.1866.55", which is conveniently present in the "Server" HTTP header. Skimming through the results, it would appear most of the nodes are on the Level 3 network. Picking one non-Level3 node at random (192.67.191.173) and doing an rDNS lookup reveals the following: 173.191.67.192.in-addr.arpa. 3600 IN    PTR LEVEL3-CDN-192-67-191-173.de.kpn-eurorings.net. There's your answer. "Level 3 CDN". Kind Regards, Filip Hruska On 6/17/20 6:09 PM, Justin Oeder wrote:

Former Level3 operates a CDN.  Might be worth looking into.

On Wed, Jun 17, 2020, 11:43 AM Stephen Satchell <list@satchell.net <mailto:list@satchell.net>> wrote:

On 6/17/20 8:29 AM, Clinton Work wrote: > I'm struggling to determine which CDN owns the servers in CenturyLink prefix 8.240.0.0/12 <http://8.240.0.0/12>.   During the Call of Duty Season 4 update on June 11th from 06:00 UTC until 08:30 UTC, we had 240 Gbps of traffic steaming into our network from CenturyLink prefix 8.240.0.0/12 <http://8.240.0.0/12>.   We originally thought it was Akamai, but they swear up and down that the servers don't belong to them. > > Here are some of the HTTP/HTTPS servers in 8.240.0.0/12 <http://8.240.0.0/12>: > 8.253.151.248 > 8.251.135.126 > 8.240.167.126 > 8.240.228.126 > 8.240.168.126 > 8.240.126.254 > 8.240.191.254

You might ask Level3.