Question and response
Question
dig 149.63.in-addr.arpa. NS
Answer
149.63.in-addr.arpa. 86400 NS authns1.qwest.net.
149.63.in-addr.arpa. 86400 NS authns2.qwest.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0