| step | query | auth | servers |
| 1 | 64.37.194.173.in-addr.arpa. | . | (c,a,k,m,g,e,h,f,j,d,i,b,l).root-servers.net. |
| 2 | 64.37.194.173.in-addr.arpa. | in-addr.arpa. | (c,f,d,a,e,b).in-addr-servers.arpa. |
| 3 | 64.37.194.173.in-addr.arpa. | 173.in-addr.arpa. | (r,z,x,v,t,w,y,u).arin.net. |
| 4 | 64.37.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns2,ns4,ns1,ns3).google.com. |
We pick