Robtex

Up: 203.19.16.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.19.16.0/24
Down right: 203.19.17.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.19.16.37	PTR	dial.xlat.jdv.com
203.19.16.126	PTR	operations.xlat.jdv.com
203.19.17.5	A+PTR	ns1.jdv.com
203.19.17.5	A	ns1.ausiex.com.au
203.19.17.5	A	ns1.broking.westpac.com.au
203.19.17.10	A+PTR	igwx1.ausiex.com.au
203.19.17.10	A	mail-trading2.dyn.national.com.au
203.19.17.10	A	smtp1.jdv.com
203.19.17.11	A	epmail1.jdv.com
203.19.17.21	A+PTR	qmail1.jdv.com
203.19.17.57	A	u.webservices.jdv.com
203.19.17.61	A	commsecadviserservices.com.au
203.19.17.61	A	www.commsecadviserservices.com.au
203.19.17.73	A	www.stockhighway.com.au
203.19.17.80	A	trading.nab.com.au
203.19.17.80	A	trading.dyn.national.com.au
203.19.17.80	A	trading.national.com.au
203.19.17.82	A+PTR	ausiex.com.au
203.19.17.82	A	ausiex.com
203.19.17.82	A	www.ausiex.com.au
203.19.17.86	A+PTR	platomail.ausiex.com.au
203.19.17.102	A+PTR	webmail.jdv.com
203.19.17.103	A+PTR	www.bt.stockhighway.com.au
203.19.17.104	PTR	www.avcol.com.au
203.19.17.109	A+PTR	www.echelonportfolio.com
203.19.17.109	A	echelonportfolio.com
203.19.17.111	PTR	www.easybroking.easystreet.com.au
203.19.17.111	A	easybroking.easystreet.com.au
203.19.17.113	A+PTR	www.heritagetrading.com.au
203.19.17.113	A	heritagetrading.com.au
203.19.17.115	PTR	www.adviser.deltasecurities.com.au
203.19.17.117	PTR	www.tradingwith.grovesecurities.com.au
203.19.17.117	A	tradingwith.grovesecurities.com.au
203.19.17.121	A+PTR	www.jdv.com
203.19.17.121	A	jdv.com
203.19.17.131	A+PTR	www.sharetrading.netwealth.com.au
203.19.17.131	A	sharetrading.netwealth.com.au
203.19.17.134	A+PTR	www.portfolio.entrustpwm.com.au
203.19.17.134	A	portfolio.entrustpwm.com.au
203.19.17.135	A+PTR	eta.bt.stockhighway.com.au
203.19.17.136	A	amt.bt.stockhighway.com.au
203.19.17.137	A+PTR	www.bt-trading.stockhighway.com.au
203.19.17.138	A+PTR	webservices.jdv.com
203.19.17.145	A+PTR	www.coretrading.com.au
203.19.17.145	A	sharetrading.coretrading.com.au
203.19.17.145	A	echelonportfolio.com.au
203.19.17.146	A	homebroker.com.au
203.19.17.148	A+PTR	onlineinvesting.westpac.com.au
203.19.17.148	A	private.broking.westpac.com.au
203.19.17.150	A	app.onlineinvesting.westpac.com.au
203.19.17.155	A+PTR	admin.onlineinvesting.westpac.com.au
203.19.17.155	A	admin.broking.westpac.com.au
203.19.17.156	PTR	shy.private.broking.westpac.com.au
203.19.17.183	A+PTR	p3.webiress.private.broking.westpac.com.au
203.19.17.201	A	wslmail1-1.jdv.com
203.19.17.202	A+PTR	u.private.broking.westpac.com.au
203.19.17.206	A	u.www.magnitude.stockhighway.com.au
203.19.17.221	A	b2bproxy1.jdv.com
203.19.17.222	A+PTR	uat-jdvb2b1-1.jdv.com
203.19.17.222	A	b2bproxy-uat.jdv.com
203.19.17.224	A	jdvb2b1-1.jdv.com
203.19.17.225	A	wslb2b1-1.jdv.com