dns1.tokai.or.jp.
Question and response
Question
dig 230.192.238.127.42.in-addr.arpa. PTR
Answer
230.192.238.127.42.in-addr.arpa. 600 PTR dns1.tokai.or.jp.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0