Robtex

Up: 204.15.64.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 204.15.66.0/24
Down right: 204.15.67.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.15.66.4	PTR	webcatcher.websense.com
204.15.66.5	A+PTR	filetransfer.websense.com
204.15.66.11	PTR	static-204-15-66-11.websense.com
204.15.66.11	A	www.wasteofcompanytime.com
204.15.66.11	A	appliancepatch.websense.com
204.15.66.13	PTR	static-204-15-66-13.websense.com
204.15.66.13	A	csi.websense.com
204.15.66.17	PTR	static-204-15-66-17.websense.com
204.15.66.17	A	www.testdatabasewebsense.com
204.15.66.25	PTR	smtp.websense.com
204.15.66.25	A+PTR	kl.smtp.websense.com
204.15.66.53	PTR	ns2.websense.com
204.15.66.70	PTR	static-204-15-66-70.websense.com
204.15.66.73	A	downloads.surfcontrol.com
204.15.66.73	A	installers.websense.com
204.15.66.80	A	kl.download.websense.com
204.15.66.80	A	cx.download.websense.com
204.15.66.80	A	analytic-feedback.websense.com
204.15.66.81	A+PTR	download-kl1.websense.com
204.15.66.82	A	download-kl2.websense.com
204.15.66.83	A+PTR	download-kl3.websense.com
204.15.66.84	A	download-kl4.websense.com
204.15.66.85	A+PTR	download-kl5.websense.com
204.15.66.121	A+PTR	rklsi1-204-15-66-121.websense.com
204.15.66.122	A+PTR	rklsi2-204-15-66-122.websense.com
204.15.66.125	A+PTR	rklsi-204-15-66-125.websense.com
204.15.66.187	A	fwsm-204-15-66-187.websense.com
204.15.66.188	A	rklcore1-204-15-66-188.websense.com
204.15.66.189	A	rklcore2-204-15-66-189.websense.com
204.15.66.192	PTR	network-204-15-66-192.websense.com
204.15.66.196	A	rklcore1-204-15-66-196.websense.com
204.15.66.197	A+PTR	rklcore2-204-15-66-197.websense.com
204.15.66.226	PTR	static-204-15-66-226.websense.com
204.15.66.228	PTR	static-204-15-66-228.websense.com
204.15.66.253	A	rklcore1.websense.com
204.15.66.254	A	rklcore2.websense.com
204.15.67.1	A+PTR	remotefiltering.websense.com
204.15.67.4	PTR	webcatcher.websense.com
204.15.67.4	A+PTR	itvpn2.gg.forcepoint.com
204.15.67.8	PTR	static-204-15-67-8.websense.com
204.15.67.10	PTR	static-204-15-67-10.websense.com
204.15.67.11	PTR	test.takeittotheroot.com
204.15.67.11	A	www.wasteofcompanytime.com
204.15.67.11	A	www.surfcontrol.in
204.15.67.13	PTR	www.websensesecuritylabs.com
204.15.67.13	A+PTR	projectblueshift.com
204.15.67.14	PTR	www.mywebsense.com
204.15.67.15	PTR	partnerkit.forcepoint.com
204.15.67.15	PTR	threatdescriptions.forcepoint.com
204.15.67.15	PTR	securitylabs.forcepoint.com
204.15.67.17	PTR	static-204-15-67-17.websense.com
204.15.67.17	A+PTR	testdatabase.forcepoint.com
204.15.67.17	A+PTR	testdatabasewebsense.com
204.15.67.19	PTR	static-204-15-67-19.websense.com
204.15.67.19	A	appstore.websense.com
204.15.67.19	A	portal.websense.com
204.15.67.21	PTR	static-204-15-67-21.websense.com
204.15.67.25	A+PTR	smtp.websense.com
204.15.67.25	A+PTR	l3.smtp.websense.com
204.15.67.25	A	mail.prosecuritysd.com
204.15.67.34	PTR	static-204-15-67-34.websense.com
204.15.67.38	PTR	static-204-15-67-38.websense.com
204.15.67.40	A+PTR	static-204-15-67-40.websense.com
204.15.67.40	A	mail.netpart.com
204.15.67.41	A	static-204-15-67-41.websense.com
204.15.67.42	A	static-204-15-67-42.websense.com
204.15.67.44	A	static-204-15-67-44.websense.com
204.15.67.45	A+PTR	fileshare.websense.com
204.15.67.47	A	static-204-15-67-47.websense.com
204.15.67.48	PTR	kb.websense.com
204.15.67.48	A+PTR	ikb.surfcontrol.com
204.15.67.48	A+PTR	static-204-15-67-48.websense.com
204.15.67.49	A+PTR	static-204-15-67-49.websense.com
204.15.67.49	A	www.apreo.com
204.15.67.53	A+PTR	ns1.websense.com
204.15.67.70	A+PTR	asa.surfcontrol.com
204.15.67.70	PTR	ava.surfcontrol.com
204.15.67.70	A+PTR	listsrv.surfcontrol.com
204.15.67.73	A	downloads.surfcontrol.com
204.15.67.73	A	installers.websense.com
204.15.67.78	PTR	static-204-15-67-78.websense.com
204.15.67.78	A	priorityint.download.websense.com
204.15.67.79	PTR	static-204-15-67-79.websense.com
204.15.67.79	A	premiumint.download.websense.com
204.15.67.80	A+PTR	download.websense.com
204.15.67.80	PTR	webcatcher.websense.com
204.15.67.80	PTR	ddsdom.download.websense.com
204.15.67.94	PTR	static-204-15-67-94.websense.com
204.15.67.94	A	community.websense.com
204.15.67.102	PTR	static-204-15-67-102.websense.com
204.15.67.102	A	www.stonesoft.fi
204.15.67.102	A	forcepointsupport.com
204.15.67.104	A+PTR	ns3.forcepoint.com
204.15.67.104	PTR	static-204-15-67-104.websense.com
204.15.67.110	A+PTR	ddsqa.websense.com
204.15.67.110	A	download.websense.com
204.15.67.110	A	sig.sidewinder.downloads.forcepoint.com
204.15.67.115	PTR	static-204-15-67-115.websense.com
204.15.67.167	PTR	static-204-15-67-167.websense.com
204.15.67.169	PTR	static-204-15-67-169.websense.com
204.15.67.169	A	ftp3.websense.com
204.15.67.173	PTR	esg-sm3.forcepoint.com
204.15.67.177	A	webmail.forcepoint.com
204.15.67.183	PTR	static-204-15-67-183.websense.com
204.15.67.194	PTR	static-204-15-67-194.websense.com
204.15.67.244	PTR	americas.vpn.websense.com
204.15.67.253	A	rl3core1.websense.com
204.15.67.254	A	rl3core2.websense.com