Red.softbanktelecom.co.jp has no NS records.
NS records for this zone are defined at softbanktelecom.co.jp.
NS records for this zone are defined at softbanktelecom.co.jp.
Question and response
Question
dig Red.softbanktelecom.co.jp. NS
Answer
The response has no answer records.
Authority
softbanktelecom.co.jp. 900 SOA ns-w2.softbanktelecom.co.jp. postmaster.softbanktelecom.co.jp. 2017060799 1800 900 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0