DNS delegation of 69.43.161.180 updated: May 25, 2013 5:20:03 PM
Delegation
step
query
auth
servers
1
180.161.43.69.in-addr.arpa.
.
(c,m,k,l,h,e,a,g,d,f,j,b,i).root-servers.net.
2
180.161.43.69.in-addr.arpa.
in-addr.arpa.
(c,b,d,e,a,f).in-addr-servers.arpa.
3
180.161.43.69.in-addr.arpa.
69.in-addr.arpa.
(r,t,z,u,v,y,x,w).arin.net.
4
180.161.43.69.in-addr.arpa.
161.43.69.in-addr.arpa.
(ns2,ns1).trellian.com.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about 180.161.43.69.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 69.in-addr.arpa is delegated to eight name servers, including r.arin.net (3), so we ask that one and learn that 161.43.69.in-addr.arpa is delegated to two name servers (4), so we ask ns2.trellian.com and get the following answer: