33.revird.53.50.193.in-addr.arpa has no NS records.
NS records for this zone are defined at revird.53.50.193.in-addr.arpa.
NS records for this zone are defined at revird.53.50.193.in-addr.arpa.
Question and response
Question
dig 33.revird.53.50.193.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
revird.53.50.193.in-addr.arpa. 3600 SOA censvrns0005.intranet.ird.fr. hostmaster.ird.fr. 2014040914 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0