Robtex

Up: 187.18.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 187.18.32.0/22
Down right: 187.18.36.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
187.18.32.131	A+PTR	gw-fln.01.actual.net.br
187.18.32.141	A	actual.net.br
187.18.32.141	A	ns1.sinprfsc.org.br
187.18.32.141	A	actualspeed.com.br
187.18.32.160	A+PTR	mail.actualnetwork.com.br
187.18.32.160	A	mail.allport.com.br