DNS delegation of 54.112.31 updated: May 22, 2013 1:02:17 PM
Delegation
step
query
auth
servers
1
31.112.54.in-addr.arpa.
.
(i,g,a,j,m,c,b,d,k,e,l,h,f).root-servers.net.
2
31.112.54.in-addr.arpa.
in-addr.arpa.
(c,e,f,b,d,a).in-addr-servers.arpa.
3
31.112.54.in-addr.arpa.
54.in-addr.arpa.
(t,r,v,x,w,y,u,z).arin.net.
We pick i.root-servers.net, one of the 13 root servers (1), and ask it about 31.112.54.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 54.in-addr.arpa is delegated to eight name servers, including t.arin.net (3), so we ask that one and get the following answer: