dns.numeratus.net has no NS records.
NS records for this zone are defined at numeratus.net.
NS records for this zone are defined at numeratus.net.
Question and response
Question
dig dns.numeratus.net. NS
Answer
The response has no answer records.
Authority
numeratus.net. 3600 SOA dns.numeratus.net. hostmaster.numeratus.net. 1505055499 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0