| step | query | auth | servers |
| 1 | 1.221.143.94.in-addr.arpa. | . | (c,d,f,m,k,a,h,b,g,l,i,j,e).root-servers.net. |
| 2 | 1.221.143.94.in-addr.arpa. | in-addr.arpa. | (f,a,c,b,e,d).in-addr-servers.arpa. |
| 3 | 1.221.143.94.in-addr.arpa. | 94.in-addr.arpa. | sec1.apnic.net. pri.authdns.ripe.net. ns3.nic.fr. sns-pb.isc.org. tinnie.arin.net. sec3.apnic.net. |
| 4 | 1.221.143.94.in-addr.arpa. | 221.143.94.in-addr.arpa. | (ns1,ns2,ns3).nexthal.com. |
We pick