ns2.zcom.cz.
Question and response
Question
dig 230.128-255.230.185.89.in-addr.arpa. PTR
Answer
230.128-255.230.185.89.in-addr.arpa. 1800 PTR ns2.zcom.cz.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0