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: 3.5.151.218
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.154
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.71
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.49
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.151.127
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.125
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.132.127
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.129.39