DNS delegation of 192.5.4.1 updated: May 25, 2013 1:59:56 AM
Delegation
step
query
auth
servers
1
1.4.5.192.in-addr.arpa.
.
(h,a,m,j,d,l,k,g,c,e,f,b,i).root-servers.net.
2
1.4.5.192.in-addr.arpa.
in-addr.arpa.
(d,c,a,f,e,b).in-addr-servers.arpa.
3
1.4.5.192.in-addr.arpa.
192.in-addr.arpa.
(w,v,x,y,t,r,u,z).arin.net.
4
1.4.5.192.in-addr.arpa.
4.5.192.in-addr.arpa.
(ord,sfba,ams).sns-pb.isc.org.
We pick h.root-servers.net, one of the 13 root servers (1), and ask it about 1.4.5.192.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask d.in-addr-servers.arpa where we learn that 192.in-addr.arpa is delegated to eight name servers, including w.arin.net (3), so we ask that one and learn that 4.5.192.in-addr.arpa is delegated to three name servers (4), so we ask ord.sns-pb.isc.org and get the following answer: