101.157.154.149.in-addr.arpa.
Question and response
Question
dig 101.157.154.149.in-addr.arpa. PTR
Answer
101.157.154.149.in-addr.arpa. 600 PTR 101.157.154.149.in-addr.arpa.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0