DNS delegation of 30.38.140 updated: Jun 20, 2013 1:59:21 AM
Delegation
step
query
auth
servers
1
140.38.30.in-addr.arpa.
.
(c,g,l,h,f,e,m,k,d,i,j,a,b).root-servers.net.
2
140.38.30.in-addr.arpa.
in-addr.arpa.
(f,e,c,b,d,a).in-addr-servers.arpa.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about 140.38.30.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask f.in-addr-servers.arpa and get the following answer: