dynamic.skybb.net.nz has no NS records.
NS records for this zone are defined at skybb.net.nz.
NS records for this zone are defined at skybb.net.nz.
Question and response
Question
dig dynamic.skybb.net.nz. NS
Answer
The response has no answer records.
Authority
skybb.net.nz. 900 SOA ns-1084.awsdns-07.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0