Robtex

Up: 187.86.12.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 187.86.12.0/25
Down right: 187.86.12.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
187.86.12.12	PTR	ip187-86-12-12.anid.com.br
187.86.12.17	PTR	ip187-86-12-17.anid.com.br
187.86.12.17	A	scontent.fcpv4-1.fna.fbcdn.net
187.86.12.18	PTR	ip187-86-12-18.anid.com.br
187.86.12.18	A	video.fcpv4-1.fna.fbcdn.net
187.86.12.30	PTR	ip187-86-12-30.anid.com.br
187.86.12.30	A	sonar.fcpv4-1.fna.fbcdn.net
187.86.12.32	PTR	ip187-86-12-32.anid.com.br
187.86.12.32	A	z-p3-scontent.fcpv4-1.fna.fbcdn.net
187.86.12.33	PTR	ip187-86-12-33.anid.com.br
187.86.12.33	A	instagram.fcpv4-1.fna.fbcdn.net
187.86.12.34	PTR	ip187-86-12-34.anid.com.br
187.86.12.34	A	media.fcpv4-1.fna.whatsapp.net
187.86.12.66	PTR	ip187-86-12-66.anid.com.br
187.86.12.66	A	occ-0-907-1801.1.nflxso.net
187.86.12.66	A	occ-2-907-1740.1.nflxso.net
187.86.12.67	PTR	ipv4-1.lagg0.c002.cpv001.anid.isp.nflxvideo.net
187.86.12.67	A	occ-0-907-1801.1.nflxso.net
187.86.12.67	A	occ-2-907-1740.1.nflxso.net
187.86.12.172	PTR	cache.google.com
187.86.12.172	A	r1.sn-5opq-j28l.gvt1.com
187.86.12.172	A	r1.sn-5opq-j28l.c.youtube.com
187.86.12.173	PTR	cache.google.com
187.86.12.173	A	r2.sn-5opq-j28l.googlevideo.com
187.86.12.173	A	r2.sn-5opq-j28l.c.youtube.com
187.86.12.174	PTR	cache.google.com
187.86.12.174	A	r3.sn-5opq-j28l.c.android.clients.google.com
187.86.12.174	A	r3.sn-5opq-j28l.gvt1.com
187.86.12.175	PTR	cache.google.com
187.86.12.175	A	r4.sn-5opq-j28l.c.android.clients.google.com
187.86.12.175	A	r4---sn-5opq-j28l.googlevideo.com
187.86.12.176	PTR	cache.google.com
187.86.12.176	A	r5.sn-5opq-j28l.c.youtube.com
187.86.12.176	A	r5.sn-5opq-j28l.googlevideo.com
187.86.12.177	PTR	cache.google.com
187.86.12.177	A	r6.sn-5opq-j28l.gvt1.com
187.86.12.177	A	r6.sn-5opq-j28l.c.youtube.com