cust.dynamic.leunet.ch has no NS records.
NS records for this zone are defined at leunet.ch.
NS records for this zone are defined at leunet.ch.
Question and response
Question
dig cust.dynamic.leunet.ch. NS
Answer
The response has no answer records.
Authority
leunet.ch. 300 SOA ns1.leunet.ch. hostmaster.leunet.ch. 2020083136 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1452, xrcode 0, version 0, flags 0