DNS delegation of 216.18.170.185 updated: May 19, 2013 8:52:12 PM
Delegation
step
query
auth
servers
1
185.170.18.216.in-addr.arpa.
.
(d,g,c,k,b,j,e,m,a,f,h,i,l).root-servers.net.
2
185.170.18.216.in-addr.arpa.
in-addr.arpa.
(e,c,a,b,f,d).in-addr-servers.arpa.
3
185.170.18.216.in-addr.arpa.
216.in-addr.arpa.
(u,z,y,v,r,x,t,w).arin.net.
4
185.170.18.216.in-addr.arpa.
170.18.216.in-addr.arpa.
(ns1,ns0).reflected.net.
We pick d.root-servers.net, one of the 13 root servers (1), and ask it about 185.170.18.216.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 u.arin.net (3), so we ask that one and learn that 170.18.216.in-addr.arpa is delegated to two name servers (4), so we ask ns1.reflected.net and get the following answer: