| step | query | auth | servers |
| 1 | 73.0.212.199.in-addr.arpa. | . | (g,i,m,b,h,j,f,a,e,d,l,c,k).root-servers.net. |
| 2 | 73.0.212.199.in-addr.arpa. | in-addr.arpa. | (e,c,a,b,d,f).in-addr-servers.arpa. |
| 3 | 73.0.212.199.in-addr.arpa. | 199.in-addr.arpa. | (v,z,u,r,y,t,x,w).arin.net. |
| 4 | 73.0.212.199.in-addr.arpa. | 0.212.199.in-addr.arpa. | ns2.arin.net. ns1.arin.net. ns2.lacnic.net. sec1.authdns.ripe.net. sec1.apnic.net. |
We pick