Robtex

Up: 209.173.52.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 209.173.53.0/25
Down right: 209.173.53.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.173.53.7	A	srs.registry.4u.com
209.173.53.7	A	4u.reg.eglb.neustar.com
209.173.53.9	A	srs.registrars.travel
209.173.53.11	A+PTR	srs.neustar.us
209.173.53.13	PTR	whois.nic.us
209.173.53.13	A	liveplaysusa.us
209.173.53.13	A	gruascarlos.biz
209.173.53.17	PTR	whois.neustar
209.173.53.17	A+PTR	whois.nic.neustar
209.173.53.17	A+PTR	kids-sunrise.neustar.us
209.173.53.21	A	ote.neustar.us
209.173.53.25	A+PTR	wmrs.neustar.biz
209.173.53.26	PTR	neulevel.cn
209.173.53.26	PTR	neustar.cn
209.173.53.26	PTR	neustar.tw
209.173.53.27	A+PTR	stop.neustar.us
209.173.53.28	A+PTR	preprod.neustar.us
209.173.53.28	A+PTR	preprod.whois.us
209.173.53.32	A	stntsadmin-1.neustar.biz
209.173.53.32	A	ntsweb-sterling.neustar.biz
209.173.53.33	A	stntsadmin-2.neustar.biz
209.173.53.34	A	tw.neustar.biz
209.173.53.38	A	ote.registrars.travel
209.173.53.43	A+PTR	cngw.neustar.biz
209.173.53.44	A	www.services.biz
209.173.53.45	A	cnidngw.neustar.biz
209.173.53.56	PTR	etns.org
209.173.53.56	PTR	www.etns.org
209.173.53.58	A	ote-cn.neustar.biz
209.173.53.59	A	cnidngw-ot.neustar.biz
209.173.53.59	A	cnidn-ote.reg.eglb.neustar.com
209.173.53.61	A	equal-grs.xri.net
209.173.53.61	A	equalregistry.xdi.net
209.173.53.69	A	streicann1.neustar.com
209.173.53.70	PTR	oak.neustar.com
209.173.53.71	A	scp.neustar.com
209.173.53.72	A	strepprftp1.neustar.com
209.173.53.72	A	strepprftp1.neulevel.biz
209.173.53.73	A	streftp2.neulevel.biz
209.173.53.73	A	esrftp.neustar.biz
209.173.53.74	A	ns1.neulevel.biz
209.173.53.75	PTR	patriot.va.neustar.com
209.173.53.75	A+PTR	ns1.hosting.neustar.us
209.173.53.77	A+PTR	stscssl1.neustar.com
209.173.53.80	A+PTR	neusupport-va.neustar.biz
209.173.53.82	A	cas.nanpa.com
209.173.53.84	A+PTR	ns3.neulevel.biz
209.173.53.84	A+PTR	willow.neustar.com
209.173.53.86	A+PTR	ntsadmin.neustar.biz
209.173.53.86	A+PTR	stntsadmin-3.neustar.biz
209.173.53.86	PTR	ntsadmin.pp.neustar.biz
209.173.53.87	A+PTR	ftp.neustar.biz
209.173.53.87	PTR	ftp-legacy.metainfo.com
209.173.53.87	A+PTR	ftp.neustar.com
209.173.53.88	A+PTR	neuvpn-va.neustar.biz
209.173.53.148	A+PTR	stnlra1.neustar.us
209.173.53.149	A+PTR	stnlgw1.neustar.us
209.173.53.150	A+PTR	stnldns1.neustar.us
209.173.53.151	A+PTR	stnlreg1.neustar.us
209.173.53.162	PTR	a.gtld.biz
209.173.53.162	A	c.nic.tel
209.173.53.163	A	cityoftoledooh.us
209.173.53.163	A	pcipb.us
209.173.53.163	A	www.neustarregistry.us
209.173.53.164	A	srs.neulevel.biz
209.173.53.166	PTR	ote.neulevel.biz
209.173.53.167	A+PTR	neustarcareers.biz
209.173.53.167	PTR	neustarlife.biz
209.173.53.167	PTR	neustarcareers.com
209.173.53.168	A	neustarcare.org
209.173.53.168	A	neustarcare.net
209.173.53.168	A	www.neustarcare.org
209.173.53.169	A+PTR	whois.biz
209.173.53.169	PTR	whois.nic.biz
209.173.53.169	A	ybcm.com
209.173.53.170	A	accountprofile.neulevel.biz
209.173.53.173	A	test-api.neustar.biz
209.173.53.173	A	drs.neulevel.biz
209.173.53.174	PTR	xri.net
209.173.53.174	A	proxy.xri.net
209.173.53.174	A	public.xdi.org
209.173.53.177	A+PTR	cch-prod.neustar.com
209.173.53.177	PTR	epb-wsp.neustar.com
209.173.53.177	A+PTR	soa-api.neustar.com
209.173.53.180	PTR	iab.org
209.173.53.180	PTR	iesg.org
209.173.53.181	A	srs-conn-test.neulevel.biz
209.173.53.182	PTR	neustarpartner.asia
209.173.53.182	PTR	helloneustar.biz
209.173.53.182	PTR	hellonewstar.biz
209.173.53.188	A	equal.xri.net
209.173.53.189	A	at.xri.net
209.173.53.190	A+PTR	bang.xri.net
209.173.53.200	A+PTR	cch-cte.neustar.com
209.173.53.200	A+PTR	cch-dev.neustar.com
209.173.53.200	A+PTR	jhub-api-qa.neustar.com
209.173.53.202	A+PTR	dotus.neustar.us
209.173.53.203	A+PTR	xrp-comm.neustar.biz
209.173.53.235	A+PTR	stengnat.va.neustar.com
209.173.53.254	A	drtest.neustar.biz