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: 54.231.225.193
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.28.132
Name:	s3-w.us-east-1.amazonaws.com
Address: 54.231.171.225
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.191.201
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.28.223
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.27.41
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.130.193
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.231.81