authsmtp02.pccwmobile.com has no NS records.
NS records for this zone are defined at pccwmobile.com.
NS records for this zone are defined at pccwmobile.com.
Question and response
Question
dig authsmtp02.pccwmobile.com. NS
Answer
The response has no answer records.
Authority
pccwmobile.com. 10800 SOA dns3.pccw.com. dnsadmin.pcg-group.com. 2021073000 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0