20.0-25.91.143.202.in-addr.arpa has no NS records.
NS records for this zone are defined at 0-25.91.143.202.in-addr.arpa.
NS records for this zone are defined at 0-25.91.143.202.in-addr.arpa.
Question and response
Question
dig 20.0-25.91.143.202.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
0-25.91.143.202.in-addr.arpa. 3600 SOA webcas.net. root.webcas.net. 2026032501 3600 1800 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0