Robtex

Up: 203.57.204.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.57.204.0/25
Down right: 203.57.204.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.57.204.1	A+PTR	router-a.webzone.net.au
203.57.204.1	A	router-b.webzone.net.au
203.57.204.2	PTR	dns1.webzone.net.au
203.57.204.2	A	ns1.grunt.tv
203.57.204.2	A	ns1.netadvantage.com.au
203.57.204.3	PTR	dns2a.webzone.net.au
203.57.204.3	A	dns1a.webzone.net.au
203.57.204.3	A	dns.webzone.net.au
203.57.204.4	A+PTR	dns2.webzone.net.au
203.57.204.4	A	dns1.webzone.org
203.57.204.4	A	newgateway.webzone.net.au
203.57.204.5	A+PTR	dns3.webzone.net.au
203.57.204.5	A	dns3.webzone.org
203.57.204.5	A	ns2.grunt.tv
203.57.204.7	PTR	monitor.webzone.net.au
203.57.204.8	A	my.webzone.net.au
203.57.204.8	A	monitor.webzone.net.au
203.57.204.10	A+PTR	proxy.webzone.net.au
203.57.204.10	PTR	smtp.webzone.net.au
203.57.204.10	A+PTR	whlan.webzone.net.au
203.57.204.11	PTR	mail.sledgehammer.com.au
203.57.204.11	A	scan.webzone.net.au
203.57.204.11	A	mail2.westsydneywanderersfc.net.au
203.57.204.13	PTR	mail.webzone.net.au
203.57.204.13	PTR	scan.webzone.net.au
203.57.204.13	PTR	scan2.webzone.net.au
203.57.204.14	PTR	smtp.webzone.net.au
203.57.204.19	A	mail.webzone.net.au
203.57.204.20	A+PTR	fradius2.webzone.net.au
203.57.204.20	A	webzone.net.au
203.57.204.20	A	admin.webzone.net.au
203.57.204.21	A	park.webzone.net.au
203.57.204.22	A	support.webzone.net.au
203.57.204.23	PTR	support.webzone.net.au
203.57.204.23	A	webzone.biz
203.57.204.23	A	webzone.com.au
203.57.204.24	PTR	park.webzone.net.au
203.57.204.24	A	ozsoccer.net
203.57.204.25	A+PTR	fradius1.webzone.net.au
203.57.204.40	A	backup.webzone.net.au
203.57.204.40	A	gallery.webzone.net.au
203.57.204.59	PTR	www.footballnews.com.au
203.57.204.59	A	footballnews.com.au
203.57.204.59	A	westsydneywanderersfc.net.au
203.57.204.80	PTR	webserver5.webzone.net.au
203.57.204.80	A	aasoftware.com.au
203.57.204.80	A	webserver4.webzone.net.au
203.57.204.98	A	unixweb.webzone.net.au
203.57.204.120	A+PTR	plesk2.webzone.net.au
203.57.204.120	A	adelaideunited.net.au
203.57.204.120	A	wellingtonphoenixfc.net.au
203.57.204.121	PTR	fuscohomes.com.au
203.57.204.121	A	cqcarbon.com.au
203.57.204.121	A	cqcarbon.com
203.57.204.245	A	vpngate.webzone.net.au
203.57.204.246	PTR	vpn-cl1.webzone.net.au
203.57.204.249	PTR	bolt.cqpartners.com.au
203.57.204.249	PTR	mail4.webzone.net.au
203.57.204.250	PTR	vpn-cl5.webzone.net.au
203.57.204.250	A	mail.cqgas.com.au