shell:$ nslookup -timeout=2 -retry=1 'attachment.fbsbx.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
attachment.fbsbx.com	canonical name = star.c10r.facebook.com.
Name:	star.c10r.facebook.com
Address: 31.13.80.8
Name:	star.c10r.facebook.com
Address: 2a03:2880:f356:8d:face:b00c:0:2