shell:$ nslookup -timeout=2 -retry=1 'indosat-app.s3.ap-southeast-1.amazonaws.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
indosat-app.s3.ap-southeast-1.amazonaws.com	canonical name = s3-r-w.ap-southeast-1.amazonaws.com.
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.151.215
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.148.10
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.147.16
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.173
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.151.104
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.147.122
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.151.112
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.164.210