shell:$ nslookup -timeout=2 -retry=1 'z-p15.graph.instagram.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
z-p15.graph.instagram.com	canonical name = z-p15-instagram.c10r.facebook.com.
Name:	z-p15-instagram.c10r.facebook.com
Address: 57.144.172.35
Name:	z-p15-instagram.c10r.facebook.com
Address: 2a03:2880:f356:23:face:b00c:0:61e8