z4-181.levenger.de.com has no NS records.
NS records for this zone are defined at levenger.de.com.
NS records for this zone are defined at levenger.de.com.
Question and response
Question
dig z4-181.levenger.de.com. NS
Answer
The response has no answer records.
Authority
levenger.de.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1763629970 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0