PTR

ec2-3-0-121-23.ap-southeast-1.compute.amazonaws.com

A record for

`ap.ngrok.io`
	A	2406:da18:27f:c800:b726:7742:aadd:c579
	A	2406:da18:27f:c800:f55f:75a3:4750:642a
	A	2406:da18:27f:c801:7a28:235:c9a4:7927
	A	2406:da18:27f:c801:ec01:a51c:a56:86a5
	A	2406:da18:27f:c802:415e:3270:f366:d0ae
	A	3.0.121.23
	A	18.140.137.220
	A	18.141.83.88
	A	47.130.23.15
	A	175.41.148.246
`ec2-3-0-121-23.ap-southeast-1.compute.amazonaws.com`
	A	3.0.121.23

Singapore, Singapore, 🇸🇬 Singapore

^{🇸🇬 Amazon3.0.0.0/15 EC2 SIN prefix}