vip01.isp.mitene.jp has no NS records.
NS records for this zone are defined at isp.mitene.jp.
NS records for this zone are defined at isp.mitene.jp.
Question and response
Question
dig vip01.isp.mitene.jp. NS
Answer
The response has no answer records.
Authority
isp.mitene.jp. 3600 SOA nsx1.mitene.ad.jp. postmaster.po.mitene.or.jp. 49 7200 1800 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0