11.91.209.181.in-addr.arpa.
Question and response
Question
dig 11.91.209.181.in-addr.arpa. PTR
Answer
11.91.209.181.in-addr.arpa. 38400 PTR 11.91.209.181.in-addr.arpa.
Authority
91.209.181.in-addr.arpa. 38400 NS ns1.dcarsat.com.ar.
91.209.181.in-addr.arpa. 38400 NS ns2.dcarsat.com.ar.
Additional
ns1.dcarsat.com.ar. 38400 A 186.33.224.10
ns2.dcarsat.com.ar. 38400 A 186.33.225.10
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0