Robtex

Up: 216.152.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.152.192.0/23
Down right: 216.152.194.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.152.192.1	A+PTR	dns-1.vancouver.ipapp.com
216.152.192.2	A+PTR	ns-2.vancouver.ipapp.com
216.152.192.2	A	south.pacificnet.net
216.152.192.12	A+PTR	web-3.vancouver.ipapp.com
216.152.192.13	A+PTR	auth2.ipapp.com
216.152.192.17	A+PTR	web-4.vancouver.ipapp.com
216.152.192.21	A	vauth.ipapp.com
216.152.192.22	A	vradcurr-1.vancouver.ipapp.com
216.152.192.23	A+PTR	www.itapp.net
216.152.192.24	A	test.itapp.net
216.152.192.25	A	apitest.ipapplications.com
216.152.192.26	PTR	myaccount.itapp.net
216.152.192.28	A	test-myaccount.itapp.net
216.152.192.29	A+PTR	test-www.myhelpdesk.com
216.152.192.30	A	test-mymelaleuca.itapp.net
216.152.192.32	A	api.ipapplications.com
216.152.192.33	A	portal-2.vancouver.ipapp.com
216.152.192.37	A+PTR	test-www.saasautomation.com
216.152.192.46	PTR	ipa-dev-geronimo.vancouver.ipapp.com
216.152.192.47	A+PTR	ppsp.ipapp.com
216.152.192.65	A	testv-www.myhelpdesk.com
216.152.192.66	A	virus.vancouver.ipapp.com
216.152.192.71	A+PTR	ns1.cobex.net
216.152.192.72	A+PTR	ns2.cobex.net
216.152.192.79	A	popper-2.vancouver.ipapp.com
216.152.192.81	A	reports.itapp.net
216.152.192.94	A	mx-6-1.vancouver.ipapp.com
216.152.192.95	A+PTR	mx.ipapp.com
216.152.192.97	A+PTR	oraclevm-2.vancouver.ipapp.com
216.152.192.97	A	mail2.services.netscape.ca
216.152.192.98	PTR	oraclevm-12.vancouver.monexa.com
216.152.192.113	A	radius-2.vancouver.ipapp.com
216.152.192.116	A	storedge33-3.vancouver.ipapp.com
216.152.192.118	A+PTR	ppsp-dev-2.vancouver.ipapp.com
216.152.192.120	A+PTR	ironport-1.vancouver.ipapp.com
216.152.192.120	A	smtp.ipapp.com
216.152.192.121	A+PTR	ironport-2.vancouver.ipapp.com
216.152.192.121	A	smtp.ipapp.com
216.152.192.123	A+PTR	vmx.ipapp.com
216.152.192.126	A+PTR	myaccount.itapp.net
216.152.192.130	PTR	netsweeper-1.vancouver.ipapp.com
216.152.192.131	PTR	www.hylafax.org
216.152.192.136	A+PTR	mymelaleuca.itapp.net
216.152.192.140	A	nfs-1.vancouver.ipapp.com
216.152.192.156	A	billingjustparts.ipapp.com
216.152.192.163	A	smtp-2.vancouver.ipapp.com
216.152.192.164	A	smtp-3.vancouver.ipapp.com
216.152.192.165	A	newapp.itapp.net
216.152.192.166	A	newapi.ipapplications.com
216.152.192.177	A	myaccount.softbridgeinc.com
216.152.192.178	PTR	modsec1.vancouver.ipapp.com
216.152.192.178	A	webmail.services.netscape.ca
216.152.192.178	A	webmail.netscape.ca
216.152.192.180	A	mx-1.vancouver.ipapp.com
216.152.192.198	A	testironport.ipapp.com
216.152.192.201	PTR	smtp.ipapp.com
216.152.192.201	A	mail2.services.netscape.ca
216.152.192.201	A	mx.rs.ipapp.com
216.152.192.211	A	smtp-virus.vancouver.ipapp.com
216.152.192.212	A	mx-virus.vancouver.ipapp.com
216.152.192.215	A	test-pci.itapp.net
216.152.192.216	A	test-api.ipapplications.com
216.152.192.223	A	voyus.com
216.152.192.223	A	myhelpdesk.com
216.152.192.226	A	api.myhelpdesk.com
216.152.192.234	PTR	www.ipapplications.com
216.152.192.234	A	saasautomation.com
216.152.192.234	A	www.ipapp.com
216.152.192.235	PTR	www.ipapplications.com
216.152.192.242	A	storedge33-1.vancouver.ipapp.com
216.152.192.243	A	nocdesktop-1.vancouver.ipapp.com
216.152.192.245	A	netapp270-1.vancouver.ipapp.com
216.152.192.248	A	fw-vip.vancouver.ipapp.com
216.152.192.249	A	foundry-2.vancouver.ipapp.com
216.152.192.251	A	foundry-1.vancouver.ipapp.com
216.152.192.252	A	216-152-192-hsrp-1.vancouver.ipapp.com
216.152.193.1	A+PTR	ns-1.vancouver.ipapp.com
216.152.193.1	A	north.pacificnet.net
216.152.193.2	A+PTR	dns-2.vancouver.ipapp.com
216.152.193.23	A	demo-23.vancouver.ipapp.com
216.152.193.33	A	devel-23.vancouver.ipapp.com
216.152.193.60	A	216-152-193-0-hsrp-1.vancouver.ipapp.com
216.152.193.62	A	216-152-193-0-gw.vancouver.ipapp.com
216.152.193.70	A+PTR	biz.ipapp.com
216.152.193.142	A	dhcp-216-152-193-142.vancouver.ipapp.com
216.152.193.143	A	dhcp-216-152-193-143.vancouver.ipapp.com
216.152.193.144	A	dhcp-216-152-193-144.vancouver.ipapp.com
216.152.193.152	A	dhcp-216-152-193-152.vancouver.ipapp.com
216.152.193.154	A	dhcp-216-152-193-154.vancouver.ipapp.com
216.152.193.155	A	dhcp-216-152-193-155.vancouver.ipapp.com
216.152.193.160	A	dhcp-216-152-193-160.vancouver.ipapp.com
216.152.193.163	A	dhcp-216-152-193-163.vancouver.ipapp.com
216.152.193.165	A	dhcp-216-152-193-165.vancouver.ipapp.com
216.152.193.181	A	dhcp-216-152-193-181.vancouver.ipapp.com
216.152.193.195	A	dhcp-216-152-193-195.vancouver.ipapp.com
216.152.193.254	A	216-152-193-128-gw.vancouver.ipapp.com
216.152.194.2	A	mail.vphos.net
216.152.194.48	A+PTR	mail.esagelink.com
216.152.194.58	A+PTR	mail.quixnet.net
216.152.194.58	A	smtp.quixnet.net
216.152.194.58	A	pop.quixnet.net
216.152.194.59	PTR	mail.iglide.net
216.152.194.81	A	mail.onechoice.net
216.152.194.82	A	mail.myyellowstone.net
216.152.194.84	PTR	mail.wcteltech.net
216.152.194.84	A	mail.wcteltech.com
216.152.194.85	A+PTR	mail.netscape.ca
216.152.194.85	A	pop3.netscape.ca
216.152.194.85	A	mail.services.netscape.ca
216.152.194.86	PTR	mail.eno.netscape.ca
216.152.194.119	A+PTR	mail.pacificnet.net
216.152.194.119	A	smtp.pacificnet.net
216.152.194.125	A	mail.bluegrass.org
216.152.194.165	A	mail.unidial.com
216.152.194.180	PTR	mail.oianh.com
216.152.194.194	A+PTR	mail.ipapp.com
216.152.194.195	A	mail.myhelpdesk.com
216.152.194.197	A+PTR	mail.cognisurf.com
216.152.194.208	A	mail.virginweb.com
216.152.194.219	A	mail.mrisp.com
216.152.194.230	PTR	mail.recn.ca
216.152.194.236	PTR	mail.thechurchonline.com
216.152.194.237	A+PTR	mail.agc.inalco.com
216.152.195.43	PTR	mail.shopandsave.net
216.152.195.196	A+PTR	mail.dialup.cc