Robtex

Up: 138.219.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.219.152.0/23
Down right: 138.219.154.0/23

IP	Type	Hostname
138.219.152.13	A	r2.sn-oxuuxa-bpbe.googlevideo.com
138.219.152.13	A	r2---sn-oxuuxa-bpbe.googlevideo.com
138.219.152.14	A	r3.sn-oxuuxa-bpbe.googlevideo.com
138.219.152.14	A	r3---sn-oxuuxa-bpbe.googlevideo.com
138.219.152.81	A	scontent.fcfb2-1.fna.fbcdn.net
138.219.152.97	A	instagram.fcfb2-1.fna.fbcdn.net
138.219.152.98	A	media.fcfb2-1.fna.whatsapp.net