| step | query | auth | servers |
| 1 | 70.128.73.164.in-addr.arpa. | . | (a,c,m,j,e,b,d,l,g,i,f,h,k).root-servers.net. |
| 2 | 70.128.73.164.in-addr.arpa. | in-addr.arpa. | (d,e,a,f,c,b).in-addr-servers.arpa. |
| 3 | 70.128.73.164.in-addr.arpa. | 164.in-addr.arpa. | (x,v,u,w,t,y,z,r).arin.net. |
| 4 | 70.128.73.164.in-addr.arpa. | 73.164.in-addr.arpa. | ns2.anteldata.com.uy. seciu.edu.uy. ns1.anteldata.com.uy. sns-pb.isc.org. ns.dns.br. |
| 5 | 70.128.73.164.in-addr.arpa. | 128.73.164.in-addr.arpa. | seciu.edu.uy. tacuabe.rau.edu.uy. |
We pick