DNS delegation of 0.172.198 updated: May 25, 2013 5:47:15 PM
Delegation
step
query
auth
servers
1
198.172.0.in-addr.arpa.
.
(a,h,i,c,f,j,k,d,b,m,e,g,l).root-servers.net.
2
198.172.0.in-addr.arpa.
in-addr.arpa.
(e,a,c,f,d,b).in-addr-servers.arpa.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about 198.172.0.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask e.in-addr-servers.arpa and get the following answer: