shell:$ nslookup -timeout=2 -retry=1 'test-gateway.instagram.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
test-gateway.instagram.com	canonical name = dgw-ig.c10r.facebook.com.
Name:	dgw-ig.c10r.facebook.com
Address: 31.13.80.142
Name:	dgw-ig.c10r.facebook.com
Address: 2a03:2880:f20e:d8:face:b00c:0:21ba