shell:$ nslookup -timeout=2 -retry=1 'a919.phobos.apple.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
a919.phobos.apple.com	canonical name = a2.phobos.g.aaplimg.com.
a2.phobos.g.aaplimg.com	canonical name = a1.phobos.apple.com.edgesuite.net.
a1.phobos.apple.com.edgesuite.net	canonical name = a1.gi3.akamai.net.
Name:	a1.gi3.akamai.net
Address: 23.199.54.113
Name:	a1.gi3.akamai.net
Address: 23.199.54.119