| step | query | auth | servers |
| 1 | 10.143.55.203.in-addr.arpa. | . | (c,m,h,j,a,g,f,e,k,b,l,i,d).root-servers.net. |
| 2 | 10.143.55.203.in-addr.arpa. | in-addr.arpa. | (d,e,f,c,b,a).in-addr-servers.arpa. |
| 3 | 10.143.55.203.in-addr.arpa. | 203.in-addr.arpa. | ns4.apnic.net. dns1.telstra.net. ns1.apnic.net. sec1.authdns.ripe.net. ns3.apnic.net. tinnie.arin.net. apnic1.dnsnode.net. |
| 4 | 10.143.55.203.in-addr.arpa. | 143.55.203.in-addr.arpa. | (ns3,ns1,ns2).netregistry.net. |
We pick