Robtex

Up: 189.50.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 189.50.128.0/23
Down right: 189.50.130.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
189.50.128.129	A+PTR	as28330-ppe-rt1-p1.iftnet.com.br
189.50.128.131	A	ns2.vmcenter.com.br
189.50.128.132	A	141.237.186.in-addr.arpa
189.50.128.150	PTR	ns2.iftnet.com.br
189.50.128.150	A	ns2.vmcenter.com.br
189.50.128.150	A	ns2.saintpeterhotel.com.br
189.50.129.234	A	mail.estiprojetos.com
189.50.130.34	PTR	ns2.alimentoswilson.com.br
189.50.130.178	A+PTR	mail.andorinha.com
189.50.130.186	A	wfoods.com.br
189.50.130.186	A	www.catchupdajuda.com.br
189.50.130.186	A	ns1.bwilson.ind.br
189.50.131.234	PTR	189.50.131.234.iftnet.com.br
189.50.131.235	PTR	189.50.131.235.iftnet.com.br