ns4.enabler.ne.jp has no NS records.
NS records for this zone are defined at enabler.ne.jp.
NS records for this zone are defined at enabler.ne.jp.
Question and response
Question
dig ns4.enabler.ne.jp. NS
Answer
The response has no answer records.
Authority
enabler.ne.jp. 3000 SOA ns1.jpne.co.jp. nsadmin.jpne.co.jp. 2026012300 3600 3600 2678400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0