v4sme011.ansp.bluewin.org has no NS records.
NS records for this zone are defined at bluewin.org.
NS records for this zone are defined at bluewin.org.
Question and response
Question
dig v4sme011.ansp.bluewin.org. NS
Answer
The response has no answer records.
Authority
bluewin.org. 600 SOA dns3.swisscom.com. admin\.dns.swisscom.com. 7480 21600 3600 604800 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0