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

Non-authoritative answer:
i.instagram.com	canonical name = instagram.c10r.instagram.com.
Name:	instagram.c10r.instagram.com
Address: 57.144.172.192
Name:	instagram.c10r.instagram.com
Address: 2a03:2880:f356:c0:face:b00c:0:43fe