Robtex

Up: 149.255.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 149.255.224.0/20
Down right: 149.255.240.0/20

IP	Type	Hostname
149.255.224.17	A	scontent.fbsr5-1.fna.fbcdn.net
149.255.224.18	A	video.fbsr5-1.fna.fbcdn.net
149.255.224.30	A	intagram.fbsr5-1.fna.fbcdn.net
149.255.224.33	A	instagram.fbsr5-1.fna.fbcdn.net
149.255.252.209	A	scontent.fbsr1-1.fna.fbcdn.net
149.255.252.210	A	video.fbsr1-1.fna.fbcdn.net
149.255.252.224	A	instagram.fbsr1-1.fna.fbcdn.net
149.255.252.225	A	media.fbsr1-1.fna.whatsapp.net
149.255.252.226	A	z-p3-scontent.fbsr1-1.fna.fbcdn.net
149.255.252.232	A	z-1-video.fbsr1-1.fna.fbcdn.net
149.255.253.197	A	a149-255-253-197.deploy.static.akamaitechnologies.com
149.255.253.199	A	a149-255-253-199.deploy.static.akamaitechnologies.com
149.255.253.201	A	a149-255-253-201.deploy.static.akamaitechnologies.com
149.255.253.202	A	a149-255-253-202.deploy.static.akamaitechnologies.com
149.255.253.224	A	a149-255-253-224.deploy.static.akamaitechnologies.com
149.255.253.227	A	a149-255-253-227.deploy.static.akamaitechnologies.com
149.255.253.235	A	a149-255-253-235.deploy.static.akamaitechnologies.com
149.255.254.204	A	r1.sn-x5guiapo3uxax-cbfk.googlevideo.com
149.255.254.204	A	r1---sn-x5guiapo3uxax-cbfk.gvt1.com
149.255.254.205	A	r2---sn-x5guiapo3uxax-cbfk.gvt1.com
149.255.254.205	A	r2---sn-x5guiapo3uxax-cbfk.googlevideo.com
149.255.255.76	A	r1.sn-x5guiapo3uxax-cbfle.googlevideo.com
149.255.255.76	A	r1.sn-x5guiapo3uxax-cbfle.gvt1.com
149.255.255.76	A	r1.sn-x5guiapo3uxax-cbfle.c.youtube.com
149.255.255.77	A	r2.sn-x5guiapo3uxax-cbfle.gvt1.com
149.255.255.140	A	r1.sn-x5guiapo3uxax-cbfek.googlevideo.com
149.255.255.140	A	r1---sn-x5guiapo3uxax-cbfek.gvt1.com
149.255.255.140	A	r1---sn-x5guiapo3uxax-cbfek.googlevideo.com
149.255.255.141	A	r2.sn-x5guiapo3uxax-cbfek.googlevideo.com