Robtex

Up: 190.15.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 190.15.32.0/20
Down right: 190.15.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
190.15.32.0	PTR	190-15-32-0.net11.com.br
190.15.32.76	A+PTR	190-15-32-76.net11.com.br
190.15.32.76	A	r1.sn-oxuvo1x-24ce.gvt1.com
190.15.32.76	A	r1.sn-oxuvo1x-24ce.googlevideo.com
190.15.32.77	PTR	190-15-32-77.net11.com.br
190.15.32.77	A	r2.sn-oxuvo1x-24ce.gvt1.com
190.15.32.209	A+PTR	190-15-32-209.net11.com.br
190.15.32.209	A	scontent.fpfb4-1.fna.fbcdn.net
190.15.32.210	A+PTR	190-15-32-210.net11.com.br
190.15.32.210	A	video.fpfb4-1.fna.fbcdn.net
190.15.32.225	A+PTR	190-15-32-225.net11.com.br
190.15.32.225	A	instagram.fpfb4-1.fna.fbcdn.net
190.15.36.3	A+PTR	190-15-36-3.net11.com.br
190.15.36.3	A	ns2.net11.com.br
190.15.36.3	A	passofundo.net11.com.br
190.15.36.9	A+PTR	190-15-36-9.net11.com.br
190.15.36.202	PTR	reverso2.fugacouros.com.br
190.15.38.31	A+PTR	190-15-38-31.net11.com.br
190.15.38.254	A+PTR	190-15-38-254.net11.com.br
190.15.41.82	A+PTR	190-15-41-82.net11.com.br
190.15.42.77	PTR	mail.abacus.inf.br
190.15.42.77	A	abacus.inf.br
190.15.42.77	A	vinicolagiaretta.com.br
190.15.43.2	PTR	190-15-43-2.net11.com.br
190.15.43.2	A	s1.indecense.com.br
190.15.43.132	A+PTR	ns1.valedeserto.com.br
190.15.43.132	A	valedeserto.com.br
190.15.43.134	PTR	ns1.panamericanacadernos.com.br
190.15.43.199	A+PTR	190-15-43-199.net11.com.br
190.15.44.38	PTR	190.15.44.38.veloturbo.net.br
190.15.45.5	A+PTR	mx2.dalia.com.br
190.15.45.5	A	server-internet.cosuel.com.br
190.15.45.30	A+PTR	smtp2.pretto.com.br
190.15.48.0	PTR	190-15-48-0.net11.com.br
190.15.48.234	A+PTR	190-15-48-234.net11.com.br
190.15.48.242	PTR	mail.bassopancotte.com.br
190.15.48.242	A	baspan.com.br
190.15.48.242	A	mail.intersulvet.com.br
190.15.48.243	PTR	mail.bassopancotte.com.br
190.15.49.131	A	mail.robustec.com.br
190.15.49.131	A	robustec.com.br
190.15.52.80	A+PTR	190-15-52-80.net11.com.br
190.15.52.80	A	linha11.com
190.15.58.207	A+PTR	190-15-58-207.net11.com.br
190.15.59.5	A+PTR	190-15-59-5.net11.com.br
190.15.59.78	A+PTR	190-15-59-78.net11.com.br