dns.calcucloudsvcs.com has no NS records.
NS records for this zone are defined at calcucloudsvcs.com.
NS records for this zone are defined at calcucloudsvcs.com.
Question and response
Question
dig dns.calcucloudsvcs.com. NS
Answer
The response has no answer records.
Authority
calcucloudsvcs.com. 3600 SOA dns.calcucloudsvcs.com. hostmaster.calcucloudsvcs.com. 1293493767 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0