shell:$ nslookup -timeout=2 -retry=1 'config.aps.amazon-adsystem.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	config.aps.amazon-adsystem.com
Address: 13.227.87.2
Name:	config.aps.amazon-adsystem.com
Address: 13.227.87.33
Name:	config.aps.amazon-adsystem.com
Address: 13.227.87.35
Name:	config.aps.amazon-adsystem.com
Address: 13.227.87.64