Robtex

Up: 186.232.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 186.232.0.0/22
Down right: 186.232.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
186.232.2.23	A+PTR	ip223.qosinternet.com.br
186.232.3.250	A	ip3250.qosinternet.com.br
186.232.3.250	A	funcex.qos.inf.br
186.232.3.250	A	mail.qosinternet.com.br
186.232.5.198	A	suporte.interponte.com.br
186.232.6.204	A+PTR	ip6204.qosinternet.com.br