Robtex

Up: 64.89.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.89.224.0/21
Down right: 64.89.232.0/21

IP	Type	Hostname
64.89.224.1	PTR	vpn.nominum.com
64.89.224.2	A	cdy-test1.nominum.com
64.89.224.3	A	cdy-test2.nominum.com
64.89.224.5	A	cdy-test4.nominum.com
64.89.224.9	A	cdy-sandbox.nominum.com
64.89.224.20	A	cdy-piaware.nominum.com
64.89.224.30	A	guest-search-dev.nominum.com
64.89.224.31	A	guest-search-dev1.nominum.com
64.89.224.50	A+PTR	ns5.keystealth.org
64.89.224.65	A	demo1.nominum.com
64.89.224.82	A	vm-demo22.nominum.com
64.89.224.84	A	vm-demo24.nominum.com
64.89.225.23	A	christisiphone7.ddns.nominum.com
64.89.225.120	A	highfive-bc3400c0136f.ddns.nominum.com
64.89.225.145	A+PTR	switchd2be6d.ddns.nominum.com
64.89.225.184	A	usrwc-ckaz2.ddns.nominum.com
64.89.225.202	A	desktop-t6u77q4.ddns.nominum.com
64.89.225.211	A+PTR	ho.wl.nominum.com
64.89.225.254	PTR	lethe.nominum.com
64.89.226.11	A	switch37f18c.ddns.nominum.com
64.89.226.86	A	fendrys-mm16.ddns.nominum.com
64.89.226.150	A	usrwc-zhendra3.ddns.nominum.com
64.89.226.151	A	systems-mini.ddns.nominum.com
64.89.228.1	A+PTR	core3.nominum.com
64.89.228.3	A	mercury.nominum.com
64.89.228.4	A+PTR	engine3.nominum.com
64.89.228.6	A	dcs1.nominum.com
64.89.228.20	A	s0.nominum.com
64.89.228.21	A	s1.nominum.com
64.89.228.23	A	hog.nominum.com
64.89.228.24	A	storage-css.nominum.com
64.89.228.35	A	finance-01.nominum.com
64.89.228.37	A	k1.nominum.com
64.89.228.38	A	k2.nominum.com
64.89.228.40	A	rwc-qlogic-5200.nominum.com
64.89.228.49	A+PTR	jiradev-mgmt.nominum.com
64.89.228.51	PTR	mail.nominum.com
64.89.228.52	A	win.nominum.com
64.89.228.52	A	ldpauth.nominum.com
64.89.228.52	A	dc-01.win.nominum.com
64.89.228.64	PTR	ns1.products.nominum.com
64.89.228.65	A	minimum.nominum.com
64.89.228.66	A	jabber.nominum.com
64.89.228.67	A+PTR	engine2.nominum.com
64.89.228.68	A	guestwireless.nominum.com
64.89.228.87	A	storage-pao.nominum.com
64.89.228.96	A	nomlogs-old.nominum.com
64.89.228.102	A	ocsp.nominum.com
64.89.228.108	A	archivist.nominum.com
64.89.228.113	A	dc-03.win.nominum.com
64.89.228.118	A	win.nominum.com
64.89.228.118	A	dc-04.win.nominum.com
64.89.228.118	A	dc-04.nominum.com
64.89.228.129	A	av.nominum.com
64.89.228.152	A	labres-2.nominum.com
64.89.228.184	A	build.nominum.com
64.89.228.187	A+PTR	intraweb-ng.nominum.com
64.89.228.228	A+PTR	shell.nominum.com
64.89.229.166	PTR	nav2-rhel4-x86-vm.eng-lab.nominum.com
64.89.230.9	A	lrt-pod1-i-rhel6-64.eng-lab.nominum.com
64.89.230.11	A+PTR	lrt-pod1-g-sol10-x86-64.eng-lab.nominum.com
64.89.230.15	A+PTR	lrt-pod1-b-rhel5-64.eng-lab.nominum.com
64.89.231.172	A+PTR	rt50568-3.a.nominum.com
64.89.233.199	A	rt58036.a.nominum.com
64.89.233.211	A	a2081.a.nominum.com
64.89.234.1	A+PTR	ftp.nominum.com
64.89.234.2	A+PTR	ns2.nominum.com
64.89.234.2	A	ns2.nominum.net
64.89.234.2	A	auth2.skyebynominum.com
64.89.234.3	PTR	ns2.staff.nominum.org
64.89.234.137	A	ls.nominum.com
64.89.234.137	A	sjc1-customer-licensing.nominum.com
64.89.234.141	A	dc-02.win.nominum.com
64.89.234.161	A+PTR	s2m.rad.nominum.com
64.89.234.161	A	rt50480.a.nominum.com
64.89.235.65	A	webmail.nominum.com
64.89.235.65	A	mail.nominum.com
64.89.235.70	A+PTR	mbx-03.win.nominum.com
64.89.235.70	A	mbx-03.nominum.com
64.89.235.73	A	win.nominum.com
64.89.235.73	A	dc-02.win.nominum.com
64.89.235.76	A	win.nominum.com
64.89.235.76	A	dc-03.win.nominum.com
64.89.235.82	A+PTR	backup-02.nominum.com
64.89.235.86	A	sjc-backup-03.is.nominum.com
64.89.235.92	A	sjc1-rt.nominum.com
64.89.235.92	A	rt.nominum.com
64.89.237.32	PTR	dhcp32.skye.nominum.com
64.89.237.48	PTR	dhcp48.skye.nominum.com
64.89.237.65	PTR	dhcp65.skye.nominum.com
64.89.237.66	PTR	dhcp66.skye.nominum.com
64.89.237.96	PTR	dhcp96.skye.nominum.com
64.89.237.129	A+PTR	lrt-skye-mgmt.eng-lab.nominum.com
64.89.237.205	A	lab-centos-6-1-a.eng-lab.nominum.com
64.89.238.11	A	skye-ans1.nominum.com
64.89.238.12	A	skye-ans2.nominum.com
64.89.238.144	A	therm.ops.nominum.com
64.89.239.100	A+PTR	excelsior.nominum.com
64.89.239.100	A	copie.nominum.com
64.89.239.113	A+PTR	telcon.nominum.com
64.89.239.181	A+PTR	charon.nominum.com
64.89.239.201	A	vpn.nominum.com
64.89.239.205	A	lethe.nominum.com
64.89.239.225	A	tartarus.nominum.com
64.89.239.231	A	nsqa.nominum.com
64.89.239.254	A	rwc-6509.nominum.com