131.128-135.154.196.217.in-addr.arpa has no NS records.
NS records for this zone are defined at 128-135.154.196.217.in-addr.arpa.
NS records for this zone are defined at 128-135.154.196.217.in-addr.arpa.
Question and response
Question
dig 131.128-135.154.196.217.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
128-135.154.196.217.in-addr.arpa. 86400 SOA adns001.dc1.conova.com. domainadmin.conova.com. 2025080703 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0