_netblocks.ext.prd.finances.gouv.fr has no NS records.
NS records for this zone are defined at finances.gouv.fr.
NS records for this zone are defined at finances.gouv.fr.
Question and response
Question
dig _netblocks.ext.prd.finances.gouv.fr. NS
Answer
The response has no answer records.
Authority
finances.gouv.fr. 3600 SOA dns1.finances.gouv.fr. dnsmaster.finances.gouv.fr. 157379 1200 300 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0