Robtex

Up: 156.154.52.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 156.154.52.0/25
Down right: 156.154.52.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
156.154.52.14	A+PTR	chssp.neustar.biz
156.154.52.16	A+PTR	attmcommerce.biz
156.154.52.16	A+PTR	test.attmcommerce.biz
156.154.52.17	PTR	preview.attmcommerce.biz
156.154.52.18	A	www.npac.eglb.neustar.com
156.154.52.23	A	dm.neustar.us
156.154.52.25	A+PTR	ns9.neustar.com
156.154.52.27	A	oms.neustar.biz
156.154.52.28	A	portps-legacy2.neustar.biz
156.154.52.29	A+PTR	portpsnsp2.neustar.biz
156.154.52.31	PTR	whois.tel
156.154.52.34	PTR	readyfortakeoff.biz
156.154.52.34	PTR	spotmorebusiness.biz
156.154.52.34	PTR	getmy.cn
156.154.52.36	A+PTR	info.xri.net
156.154.52.36	A	extranet.inames.net
156.154.52.37	A	forregistrars.neulevel.biz
156.154.52.38	A	www.inames.net
156.154.52.38	A	inames.net
156.154.52.39	PTR	newlevel.biz
156.154.52.39	A+PTR	coregistrodemarcas.co
156.154.52.39	PTR	cosunriselookup.co
156.154.52.40	A+PTR	registry.neustar.us
156.154.52.41	A	usshortcodes.neuweb.biz
156.154.52.43	A+PTR	chnpac-ncc.neustar.biz
156.154.52.47	A	owa2.neustar.biz
156.154.52.52	A	tcpacompliance.org
156.154.52.52	A	tcpacompliance.net
156.154.52.52	A	wirelessdonotcall.org
156.154.52.53	A+PTR	plus.xdi.net
156.154.52.55	A+PTR	pr-ch-www-ultratools-com.neustar.biz
156.154.52.56	A	atlantech-test.neustar.biz
156.154.52.56	A	flowroute-test.neustar.biz
156.154.52.56	A	asrwinct.neustar.biz
156.154.52.66	A+PTR	portpsnsp1.neustar.biz
156.154.52.68	A+PTR	interestedin.us
156.154.52.69	PTR	xri.net
156.154.52.69	A	proxy.xri.net
156.154.52.69	A	public.xdi.org
156.154.52.71	A+PTR	locality-whois.us
156.154.52.71	A+PTR	www.locality-whois-temp.neustar.us
156.154.52.72	A+PTR	directory-temp.neustar.us
156.154.52.72	PTR	directory.neustar.us
156.154.52.73	A+PTR	dm-temp.neustar.us
156.154.52.73	PTR	dm.neustar.us
156.154.52.74	A+PTR	secforregistrars.neustar.biz
156.154.52.76	PTR	forregistrars.neustar.biz
156.154.52.76	A+PTR	testforregistrars.neustar.biz
156.154.52.77	A+PTR	newforregistrars.neustar.biz
156.154.52.78	A+PTR	dmpp.neustar.us
156.154.52.90	A+PTR	itrs-urd-charlotte.neustar.biz
156.154.52.91	A+PTR	directorypp.neustar.us
156.154.52.92	A+PTR	www.localitypp-whois.neustar.us
156.154.52.180	A+PTR	rtmsmultiqa.va.neustar.com