| step | query | auth | servers |
| 1 | 63.180.180.199.in-addr.arpa. | . | (j,d,g,l,m,a,b,e,h,i,f,k,c).root-servers.net. |
| 2 | 63.180.180.199.in-addr.arpa. | in-addr.arpa. | (a,e,c,d,b,f).in-addr-servers.arpa. |
| 3 | 63.180.180.199.in-addr.arpa. | 199.in-addr.arpa. | (y,r,z,w,v,t,x,u).arin.net. |
| 4 | 63.180.180.199.in-addr.arpa. | 180.180.199.in-addr.arpa. | sec1.authdns.ripe.net. ns2.lacnic.net. ns1.arin.net. sec1.apnic.net. ns2.arin.net. |
We pick