We pick a.root-servers.net, one of the 13 root servers (1), and ask it about pornorama.cm and learn that cm is delegated to six name servers (2), so we ask auth02.ns.uu.net where we learn that pornorama.cm is delegated to two name servers, including ns1.sedoparking.com (3), so we ask that one and get the following answer:
Three quarter of the several thousand of host names that point only to the IP number 82.98.86.169 use name server group 1 (example: essedishop.com, lifo.typepads.net and legalretainer.com ). Worth noting is that seven percent of the domains that use name server group 1 point only to the IP number 82.98.86.169.
The six IP numbers 82.98.86.169, 199.59.243.105, 199.59.243.106, 199.59.243.107, 199.59.243.108 and …
All of the more than a thousands host names that point to IP group 1 use name server group 1.
The IP number 74.208.13.27
There are several hundred of host names that point to the IP number 74.208.13.27.