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

Non-authoritative answer:
vastamweb.s3.amazonaws.com	canonical name = s3-1-w.amazonaws.com.
s3-1-w.amazonaws.com	canonical name = s3-w.us-east-1.amazonaws.com.
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.177.5
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.191.75
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.30.74
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.27.33
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.54.137
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.193.26
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.10.91
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.30.161