We pick i.root-servers.net, one of the 13 root servers (1), and ask it about ns-pri.amnic.net and learn that net is delegated to 13 name servers (2), so we ask h.gtld-servers.net where we learn that amnic.net is delegated to five name servers, including ns-pri.amnic.net (3), so we ask that one and get the following answer:
All of the two host names that point to the IP number 195.43.74.25 point to IP group 2.
The IP number 195.43.74.53
All of the two host names that point to the IP number 195.43.74.53 point to IP group 1.
The five name servers rip.psg.com, ns-cdn.amnic.net, ns-pri.amnic.net, ns-sec.amnic.net and sns-pb.i…
There are one domains that use name server group 1.
All of those use mail server group 1. Worth noting is that all of the domains that use mail server group 1 use name server group 1.
All of them point to IP group 2. Worth noting is that one of the host names that point to IP group 2 use name server group 1.
The two IP numbers 2001:67c:21c:25::1 and 195.43.74.25 together
There are two host names that point to IP group 2.
One of those use name server group 1. Worth noting is that all of the domains that use name server group 1 point to IP group 2.
One of them use mail server group 1.
The two IP numbers 2001:67c:21c:53::1 and 195.43.74.53 together
One of the two host names that point to IP group 1 use the mail server amnic.net only (but not styx.aic.net ).
The two mail servers amnic.net and styx.aic.net together
All of the one domains that use mail server group 1 use name server group 1. Worth noting is that all of the domains that use name server group 1 use mail server group 1.
