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: 16.15.176.248
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.207.10
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.121.97
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.29.71
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.185.59
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.182.73.161
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.22.146
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.30.1