134.128.220.127.219.in-addr.arpa has no NS records.
NS records for this zone are defined at 128.220.127.219.in-addr.arpa.
NS records for this zone are defined at 128.220.127.219.in-addr.arpa.
Question and response
Question
dig 134.128.220.127.219.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
128.220.127.219.in-addr.arpa. 1800 SOA ns0.ambisys.jp. hostmaster.ambisys.com. 2019091201 10800 1800 3600000 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0