ec2-54-46-62-188.ap-east-1.compute.amazonaws.com has no NS records.
NS records for this zone are defined at ap-east-1.compute.amazonaws.com.
NS records for this zone are defined at ap-east-1.compute.amazonaws.com.
Question and response
Question
dig ec2-54-46-62-188.ap-east-1.compute.amazonaws.com. NS
Answer
The response has no answer records.
Authority
ap-east-1.compute.amazonaws.com. 60 SOA ns-465.awsdns-58.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 60
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0