shell:$ nslookup -timeout=2 -retry=1 'mesu.apple.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
mesu.apple.com	canonical name = mesu-cdn.apple.com.akadns.net.
mesu-cdn.apple.com.akadns.net	canonical name = mesu-cdn.origin-apple.com.akadns.net.
mesu-cdn.origin-apple.com.akadns.net	canonical name = mesu.g.aaplimg.com.
Name:	mesu.g.aaplimg.com
Address: 17.253.11.198
Name:	mesu.g.aaplimg.com
Address: 17.253.11.195
Name:	mesu.g.aaplimg.com
Address: 2620:149:a08:f000::195
Name:	mesu.g.aaplimg.com
Address: 2620:149:a08:f100::198