28.72.75.177.in-addr.arpa.
Question and response
Question
dig 28.72.75.177.in-addr.arpa. PTR
Answer
28.72.75.177.in-addr.arpa. 86400 PTR 28.72.75.177.in-addr.arpa.
Authority
72.75.177.in-addr.arpa. 86400 NS ns-rev-01.tely.com.br.
72.75.177.in-addr.arpa. 86400 NS ns-rev-02.tely.com.br.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0