We pick h.root-servers.net, one of the 13 root servers (1), and ask it about abileneaircraft.com and learn that com is delegated to 13 name servers (2), so we ask h.gtld-servers.net where we learn that abileneaircraft.com is delegated to five name servers, including ns1.mydyndns.org (3), so we ask that one and get the following answer:
Abileneaircraft.com is a domain controlled by four domain name servers at dyn.com. All four of them are on different IP networks. Incoming mail for abileneaircraft.com is handled by two mail servers at mailhop.org having a total of 14 IP numbers. Two mail servers have the same IP number. Some of them are on the same IP network. Abileneaircraft.com has one IP number (63.167.198.150), but the reverse is www.aso.com.
The four name servers ns1136, ns2185, ns3184 and ns4198.dns.dyn.com together
There are about sixty domains that use the four name servers ns1136, ns2185, ns3184 and ns4198.dns.dyn.com together, hereafter referred to as "name server group 3".