shell:$ nslookup -timeout=2 -retry=1 'review.intern.facebook.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
review.intern.facebook.com	canonical name = internextern.vvv.facebook.com.
internextern.vvv.facebook.com	canonical name = extern.c10r.facebook.com.
Name:	extern.c10r.facebook.com
Address: 31.13.80.17
Name:	extern.c10r.facebook.com
Address: 2a03:2880:f00e:1d:face:b00c:0:7c8d