Robtex

Up: 203.9.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.9.52.0/23
Down right: 203.9.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.9.54.22	PTR	bc.wa.gov.au
203.9.54.22	PTR	autodiscover.bc.wa.gov.au
203.9.54.22	PTR	mail.bc.wa.gov.au
203.9.55.68	A+PTR	hagis.housing.wa.gov.au
203.9.55.129	PTR	fremantleprison.com
203.9.55.129	PTR	brookdalegardens.com.au
203.9.55.129	PTR	chawa.com.au
203.9.55.131	A	av.housing.wa.gov.au
203.9.55.132	A	ultra2.dhw.wa.gov.au
203.9.55.133	PTR	cms.bmw.wa.gov.au
203.9.55.133	PTR	cmstrain.bmw.wa.gov.au
203.9.55.133	PTR	portal.bmw.wa.gov.au
203.9.55.134	PTR	mail.housing.wa.gov.au
203.9.55.135	PTR	fremantleprison.com.au
203.9.55.135	PTR	prod.fremantleprison.com.au
203.9.55.135	PTR	www.fremantleprison.com.au
203.9.55.136	A+PTR	webconf.housing.wa.gov.au
203.9.55.137	PTR	cerberus.housing.wa.gov.au
203.9.55.137	PTR	teststep1.housing.wa.gov.au
203.9.55.137	A+PTR	testus.housing.wa.gov.au
203.9.55.138	A	app03.dhw.wa.gov.au
203.9.55.138	A	testhagismob.housing.wa.gov.au
203.9.55.139	PTR	app032.dhw.wa.gov.au
203.9.55.139	PTR	ocspool.dhw.wa.gov.au
203.9.55.139	PTR	download.housing.wa.gov.au
203.9.55.141	A+PTR	ns1.housing.wa.gov.au
203.9.55.143	A+PTR	promis.housing.wa.gov.au
203.9.55.143	A	stepims.housing.wa.gov.au
203.9.55.149	A+PTR	ns2.housing.wa.gov.au
203.9.55.153	PTR	ho-pth-mag01.housing.wa.gov.au
203.9.55.153	PTR	ho-pth-seg01.housing.wa.gov.au
203.9.55.153	PTR	stepims.housing.wa.gov.au
203.9.55.154	PTR	pegasus.housing.wa.gov.au
203.9.55.171	PTR	testinhouse1.housing.wa.gov.au
203.9.55.171	PTR	inhouse.housing.wa.gov.au
203.9.55.171	PTR	uperform1.housing.wa.gov.au
203.9.55.173	A	dhw.wa.gov.au
203.9.55.173	A	www.homeswest.wa.gov.au
203.9.55.173	A	www.rps.housing.wa.gov.au
203.9.55.177	A	mincor.housing.wa.gov.au
203.9.55.178	PTR	mail.dhw.wa.gov.au
203.9.55.178	A+PTR	mail1.dhw.wa.gov.au
203.9.55.178	PTR	mail2.dhw.wa.gov.au
203.9.55.229	A+PTR	hoocs.dhw.wa.gov.au
203.9.55.229	A+PTR	hoocs.housing.wa.gov.au