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: 52.216.32.233
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.217.137
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.134.185
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.179.118
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.21.112
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.182.99.49
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.44.20
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.28.221