lswph002.jpnsv.net has no NS records.
NS records for this zone are defined at jpnsv.net.
NS records for this zone are defined at jpnsv.net.
Question and response
Question
dig lswph002.jpnsv.net. NS
Answer
The response has no answer records.
Authority
jpnsv.net. 3600 SOA ns1.tsukaeru.ne.jp. root.poaman.tsukaeru.ne.jp. 1264559592 14400 7200 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0