| step | query | auth | servers |
| 1 | 12.143.28.69.in-addr.arpa. | . | (a,g,e,i,c,m,j,f,l,h,d,b,k).root-servers.net. |
| 2 | 12.143.28.69.in-addr.arpa. | in-addr.arpa. | (f,c,b,a,e,d).in-addr-servers.arpa. |
| 3 | 12.143.28.69.in-addr.arpa. | 69.in-addr.arpa. | (x,w,t,y,v,z,r,u).arin.net. |
| 4 | 12.143.28.69.in-addr.arpa. | 143.28.69.in-addr.arpa. | dns.iad.llns.net. dns.sjc.llns.net. dns.lga.llns.net. dns.lax.llns.net. |
We pick