DNS delegation of 216.18.180.76 updated: Jun 20, 2013 12:23:49 PM
Delegation
step
query
auth
servers
1
76.180.18.216.in-addr.arpa.
.
(f,i,l,h,a,c,m,b,k,e,j,d,g).root-servers.net.
2
76.180.18.216.in-addr.arpa.
in-addr.arpa.
(c,a,b,d,e,f).in-addr-servers.arpa.
3
76.180.18.216.in-addr.arpa.
216.in-addr.arpa.
(u,x,y,r,w,v,z,t).arin.net.
4
76.180.18.216.in-addr.arpa.
180.18.216.in-addr.arpa.
(ns0,ns1).reflected.net.
We pick f.root-servers.net, one of the 13 root servers (1), and ask it about 76.180.18.216.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask c.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 180.18.216.in-addr.arpa is delegated to two name servers (4), so we ask ns0.reflected.net and get the following answer: