customer.frntdeu1.isp.starlink.com has no NS records.
NS records for this zone are defined at isp.starlink.com.
NS records for this zone are defined at isp.starlink.com.
Question and response
Question
dig customer.frntdeu1.isp.starlink.com. NS
Answer
The response has no answer records.
Authority
isp.starlink.com. 300 SOA ns1-35.azuregov-dns.us. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0