DNS delegation of 68.180.206 updated: May 23, 2013 6:27:39 AM
Delegation
step
query
auth
servers
1
206.180.68.in-addr.arpa.
.
(b,e,j,m,i,k,d,l,g,f,a,c,h).root-servers.net.
2
206.180.68.in-addr.arpa.
in-addr.arpa.
(a,b,e,d,c,f).in-addr-servers.arpa.
3
206.180.68.in-addr.arpa.
68.in-addr.arpa.
(t,z,x,v,u,r,y,w).arin.net.
4
206.180.68.in-addr.arpa.
206.180.68.in-addr.arpa.
(ns1,ns2,ns4,ns3,ns5).yahoo.com.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about 206.180.68.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask a.in-addr-servers.arpa where we learn that 68.in-addr.arpa is delegated to eight name servers, including t.arin.net (3), so we ask that one and learn that 206.180.68.in-addr.arpa is delegated to five name servers (4), so we ask ns1.yahoo.com and get the following answer: