Robtex

Up: 187.49.0.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 187.49.0.0/25
Down right: 187.49.0.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
187.49.0.2	A+PTR	gateway.scw.net.br
187.49.0.26	A+PTR	ns3.scw.net.br
187.49.0.26	A	ns3.scwtelecom.net.br
187.49.0.34	A+PTR	ns4.scw.net.br
187.49.0.35	A+PTR	htb.scw.net.br
187.49.0.42	A+PTR	ns5.scw.net.br
187.49.0.50	PTR	web.scw.net.br
187.49.0.50	A	rsync.scw.net.br
187.49.0.50	A	mysql.scw.net.br
187.49.0.101	A+PTR	ns1.scw.net.br
187.49.0.101	A	ns1.scwtelecom.net.br
187.49.0.102	A+PTR	ns2.scw.net.br
187.49.0.102	A	ns2.scwtelecom.net.br