shell:$ nslookup -timeout=2 -retry=1 'headers-regional.vvv.facebook.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	headers-regional.vvv.facebook.com
Address: 66.220.149.254
Name:	headers-regional.vvv.facebook.com
Address: 2a03:2880:10ff:fffe:face:b00c:0:1