243.240-28.131.71.64.in-addr.arpa has no NS records.
NS records for this zone are defined at 240-28.131.71.64.in-addr.arpa.
NS records for this zone are defined at 240-28.131.71.64.in-addr.arpa.
Question and response
Question
dig 243.240-28.131.71.64.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
240-28.131.71.64.in-addr.arpa. 172800 SOA ns1.he.net. hostmaster.he.net. 2025120501 86400 7200 3600000 172800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0