Robtex

Up: 189.89.160.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 189.89.160.0/23
Down right: 189.89.162.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
189.89.160.145	PTR	189-89-160-145.static.itsweb.com.br
189.89.160.145	A	external.fssa8-1.fna.fbcdn.net
189.89.160.145	A	scontent.fssa8-1.fna.fbcdn.net
189.89.160.146	PTR	189-89-160-146.static.itsweb.com.br
189.89.160.146	A	video.fssa8-1.fna.fbcdn.net
189.89.160.158	A	sonar.fssa8-1.fna.fbcdn.net
189.89.160.160	PTR	189-89-160-160.static.itsweb.com.br
189.89.160.160	A	instagram.fssa8-1.fna.fbcdn.net
189.89.160.161	A	media.fssa8-1.fna.whatsapp.net
189.89.160.162	PTR	189-89-160-162.static.itsweb.com.br
189.89.160.162	A	z-p3-scontent.fssa8-1.fna.fbcdn.net
189.89.160.168	PTR	189-89-160-168.static.itsweb.com.br
189.89.160.168	A	z-1-external.fssa8-1.fna.fbcdn.net
189.89.160.168	A	z-1-video.fssa8-1.fna.fbcdn.net
189.89.160.185	PTR	189-89-160-185.static.itsweb.com.br
189.89.161.12	PTR	cache.google.com
189.89.161.12	A	r1---sn-puncg5npa-nnve.gvt1.com
189.89.161.12	A	r1.sn-puncg5npa-nnve.gvt1.com
189.89.161.13	PTR	cache.google.com
189.89.161.13	A	r2.sn-puncg5npa-nnve.gvt1.com
189.89.161.14	PTR	cache.google.com
189.89.161.69	PTR	189-89-161-69.static.itsweb.com.br