We pick b.root-servers.net, one of the 13 root servers (1), and ask it about communitydns.net and learn that net is delegated to 13 name servers (2), so we ask m.gtld-servers.net where we learn that communitydns.net is delegated to three name servers, including ns1.inone.com (3), so we ask that one and get the following answer:
All of them point to the IP number 91.208.95.198. Worth noting is that six of the host names that point to the IP number 91.208.95.198 use the mail server srvc131.icb.co.uk.
The three mail servers mx2.communitydns.net, serv141.icb.co.uk and srvc131.icb.co.uk together
All of the six domains that use mail server group 1 point to the three IP numbers 2001:470:1f08:170e:1::102, 91.208.95.198 and 193.223.78.102 together, hereafter referred to as "IP group 1". Worth noting is that six of the host names that point to IP group 1 use mail server group 1.
The name server ns1.inone.com
There are eleven domains that use the name server ns1.inone.com.
There are twelve host names that point to the IP number 91.208.95.198.
Six of those use the name server ns3.icb.co.uk. Worth noting is that six of the domains that use the name server ns3.icb.co.uk point to the IP number 91.208.95.198.
Six of them use the name server ns1.inone.com. Worth noting is that six of the domains that use the name server ns1.inone.com point to the IP number 91.208.95.198.