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

Non-authoritative answer:
feedmob-cdn.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: 16.15.187.187
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.202.79
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.37.49
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.177.28
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.50.201
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.3.105
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.207.59
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.196.58