DNS delegation of 216.239 updated: May 18, 2013 6:50:36 AM
Delegation
step
query
auth
servers
1
239.216.in-addr.arpa.
.
(b,c,l,e,i,g,j,d,f,a,k,m,h).root-servers.net.
2
239.216.in-addr.arpa.
in-addr.arpa.
(e,c,a,b,d,f).in-addr-servers.arpa.
3
239.216.in-addr.arpa.
216.in-addr.arpa.
(w,u,y,x,r,t,z,v).arin.net.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about 239.216.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask e.in-addr-servers.arpa where we learn that 216.in-addr.arpa is delegated to eight name servers, including w.arin.net (3), so we ask that one and get the following answer: