clockisc0.fmt1.ntfo.org.
Question and response
Question
dig 18.subnet16.190.71.64.in-addr.arpa. PTR
Answer
18.subnet16.190.71.64.in-addr.arpa. 5 PTR clockisc0.fmt1.ntfo.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0