ns1.centralnic.net has no NS records.
NS records for this zone are defined at centralnic.net.
NS records for this zone are defined at centralnic.net.
Question and response
Question
dig ns1.centralnic.net. NS
Answer
The response has no answer records.
Authority
centralnic.net. 300 SOA ns0.centralnic.net. hostmaster.centralnic.net. 2025011536 3600 60 6048000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0