PTR

ec2-54-64-78-66.ap-northeast-1.compute.amazonaws.com

A record for

`sp7service.com`
	A	2406:da14:1f1:a900:7eb5:8af3:58a5:bf2e
	A	54.64.78.66
`mail.sp7service.com`
	A	2406:da14:1f1:a900:7eb5:8af3:58a5:bf2e
	A	54.64.78.66
`ec2-54-64-78-66.ap-northeast-1.compute.amazonaws.com`
	A	54.64.78.66

66%	2406:da14:1f1:a900:7eb5:8af3:58a5:bf2e

Tokyo, Tokyo, 🇯🇵 Japan

^{🇯🇵 Amazon54.64.0.0/15 EC2 NRT prefix}