exch.bahnhof.net has no NS records.
NS records for this zone are defined at bahnhof.net.
NS records for this zone are defined at bahnhof.net.
Question and response
Question
dig exch.bahnhof.net. NS
Answer
The response has no answer records.
Authority
bahnhof.net. 300 SOA ns.bahnhof.se. hostmaster.bahnhof.net. 2026031303 1800 600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0