Robtex

Up: 216.52.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.52.0.0/23
Down right: 216.52.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.52.0.6	PTR	mpr2.po1-2g.sfj.pnap.net
216.52.0.160	A	prtm-92168-gw.sfj.pnap.net
216.52.0.162	A	chiron-116283-gw.sfj.pnap.net
216.52.0.182	PTR	oakmanagement-38947-gw.sfj.pnap.net
216.52.0.212	PTR	ams-cassandra-1.sys.adgear.com
216.52.0.212	A	ams-mon-1.sys.adgear.com
216.52.1.1	A	ns1.sfj.pnap.net
216.52.1.4	A	ix2.sfj.pnap.net
216.52.1.12	A	eu-west.load.exelator.com
216.52.1.12	A	load.amexp.exelator.com
216.52.1.12	A	optout.tm.ssl.exelator.com
216.52.1.23	A	flowproc.sfj.pnap.net
216.52.1.30	A	xen-002.sfj.pnap.net
216.52.1.33	A	ns2.sfj.pnap.net
216.52.1.35	A+PTR	nmsspare.sfj.pnap.net
216.52.1.46	PTR	servlan1a.sfj.pnap.net
216.52.1.49	A	pdu2.sfj.pnap.net
216.52.1.60	A	static.exelator.com
216.52.1.62	A	res-216-52-1-32.sfj.pnap.net
216.52.1.65	A+PTR	mailhost.sfj.internap.com
216.52.1.66	A	nfs.sfj.internap.com
216.52.1.68	PTR	jwestfall-build1.sfj.internap.com
216.52.1.69	A	jwestfall-build2.sfj.internap.com
216.52.1.70	A	print4-sjc.sfj.internap.com
216.52.1.72	A	ascott.sfj.internap.com
216.52.1.75	A+PTR	agiledb1.sfj.internap.com
216.52.1.76	A+PTR	agilefe1.sfj.internap.com
216.52.1.79	A+PTR	voip1.sfj.internap.com
216.52.1.83	A	dhcp1-83-sjc.sfj.internap.com
216.52.1.84	A	dhcp1-84-sjc.sfj.internap.com
216.52.1.87	A	dhcp1-87-sjc.sfj.internap.com
216.52.1.89	A	dhcp1-89-sjc.sfj.internap.com
216.52.1.92	A+PTR	dhcp1-92-sjc.sfj.internap.com
216.52.1.94	A	dhcp1-94-sjc.sfj.internap.com
216.52.1.97	A+PTR	dhcp1-97-sjc.sfj.internap.com
216.52.1.98	A	dhcp1-98-sjc.sfj.internap.com
216.52.1.102	A+PTR	dhcp1-102-sjc.sfj.internap.com
216.52.1.103	A+PTR	dhcp1-103-sjc.sfj.internap.com
216.52.1.104	A	dhcp1-104-sjc.sfj.internap.com
216.52.1.108	A	dhcp1-108-sjc.sfj.internap.com
216.52.1.109	A	dhcp1-109-sjc.sfj.internap.com
216.52.1.110	A	dhcp1-110-sjc.sfj.internap.com
216.52.1.113	A+PTR	dhcp1-113-sjc.sfj.internap.com
216.52.1.116	A	print2-sjc.sfj.internap.com
216.52.1.117	A+PTR	print1-sjc.sfj.internap.com
216.52.1.118	A+PTR	internap-sjc-sw3.sfj.pnap.net
216.52.1.126	A	res-216-52-1-64.sfj.pnap.net
216.52.1.129	A+PTR	sweng-shared1.sjc.internap.com
216.52.2.19	A	vap4ams1.lijit.com
216.52.2.30	A	vap6ams1.lijit.com
216.52.2.48	A	vap5ams1.lijit.com
216.52.2.56	A	bi.mikysrv.com
216.52.2.57	A	an.admailtiser.com
216.52.2.57	A	cielb.admailtiser.com
216.52.2.57	A	*.admailtiser.com
216.52.2.58	A	an.admailtiser.com
216.52.2.58	A	cielb.admailtiser.com
216.52.2.58	A	*.admailtiser.com
216.52.2.70	A	clickeu.basebanner.com
216.52.2.70	A	eumatch.mediapricingengine.com
216.52.2.70	A	41.teracreative.com
216.52.2.71	A	clickeu.basebanner.com
216.52.2.71	A	eumatch.mediapricingengine.com
216.52.2.71	A	41.teracreative.com
216.52.2.72	A	matc.basebanner.com
216.52.2.72	A	m.basebanner.com
216.52.2.72	A	impreump.gocmsrv.com
216.52.2.73	A	matc.basebanner.com
216.52.2.73	A	m.basebanner.com
216.52.2.73	A	impreump.gocmsrv.com
216.52.3.148	A+PTR	server1.mass2.net
216.52.3.148	A	mass2.net
216.52.3.148	A	mail.mass2.net