Robtex

Up: 203.190.176.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.190.184.0/22
Down right: 203.190.188.0/22

IP	Type	Hostname
203.190.184.4	PTR	server.broadband.net.id
203.190.184.5	PTR	dns2.broadband.net.id
203.190.184.242	PTR	up1-gerbang-tca.starcoms.net
203.190.186.35	PTR	server2.broadband.net.id
203.190.186.94	PTR	mail.starcoms.net
203.190.188.38	PTR	server.hariff.com