Robtex

Up: 187.2.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 187.2.72.0/23
Down right: 187.2.74.0/23

IP	Type	Hostname
187.2.73.113	PTR	bb024971.virtua.com.br
187.2.73.157	PTR	bb02499d.virtua.com.br
187.2.74.12	PTR	bb024a0c.virtua.com.br
187.2.74.12	A	r1.sn-oxunxg8pjvn-bg0d7.gvt1.com
187.2.74.13	A	r2---sn-oxunxg8pjvn-bg0d7.googlevideo.com
187.2.74.13	A	r2.sn-oxunxg8pjvn-bg0d7.googlevideo.com
187.2.74.14	A	r3.sn-oxunxg8pjvn-bg0d7.googlevideo.com
187.2.74.145	A	scontent.fgru8-1.fna.fbcdn.net
187.2.74.146	A	video.fgru8-1.fna.fbcdn.net
187.2.74.160	A	z-p3-scontent.fgru8-1.fna.fbcdn.net
187.2.74.161	A	instagram.fgru8-1.fna.fbcdn.net