dizzy.mgmt.koc.net has no NS records.
NS records for this zone are defined at koc.net.
NS records for this zone are defined at koc.net.
Question and response
Question
dig dizzy.mgmt.koc.net. NS
Answer
The response has no answer records.
Authority
koc.net. 900 SOA dnsa1.vodafone.net.tr. hostmaster.vodafone.net.tr. 2020012072 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0