plesk-dn.datapacket.net.
Question and response
Question
dig 117.64-127.136.149.63.in-addr.arpa. PTR
Answer
117.64-127.136.149.63.in-addr.arpa. 86400 PTR plesk-dn.datapacket.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0