ns2.n3.com.au has no NS records.
NS records for this zone are defined at n3.com.au.
NS records for this zone are defined at n3.com.au.
Question and response
Question
dig ns2.n3.com.au. NS
Answer
The response has no answer records.
Authority
n3.com.au. 900 SOA ns-1251.awsdns-28.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0