DNS delegation of 173.194.70 updated: May 25, 2013 7:43:46 AM
Delegation
step
query
auth
servers
1
70.194.173.in-addr.arpa.
.
(d,g,k,a,m,f,h,b,c,l,e,i,j).root-servers.net.
2
70.194.173.in-addr.arpa.
in-addr.arpa.
(f,b,e,d,a,c).in-addr-servers.arpa.
3
70.194.173.in-addr.arpa.
173.in-addr.arpa.
(t,z,x,u,v,w,r,y).arin.net.
4
70.194.173.in-addr.arpa.
194.173.in-addr.arpa.
(ns2,ns3,ns4,ns1).google.com.
We pick d.root-servers.net, one of the 13 root servers (1), and ask it about 70.194.173.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask f.in-addr-servers.arpa where we learn that 173.in-addr.arpa is delegated to eight name servers, including t.arin.net (3), so we ask that one and learn that 194.173.in-addr.arpa is delegated to four name servers (4), so we ask ns2.google.com and get the following answer: