73.101.255.149.in-addr.arpa.
Question and response
Question
dig 73.101.255.149.in-addr.arpa. PTR
Answer
73.101.255.149.in-addr.arpa. 10800 PTR 73.101.255.149.in-addr.arpa.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0