dns2.oppay.tw has no NS records.
NS records for this zone are defined at oppay.tw.
NS records for this zone are defined at oppay.tw.
Question and response
Question
dig dns2.oppay.tw. NS
Answer
The response has no answer records.
Authority
oppay.tw. 28800 SOA dns1.taiwanmobile.com. hostmaster.dns1.taiwanmobile.com. 2025112403 10800 3600 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0