Robtex

Up: 156.154.42.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 156.154.42.0/25
Down right: 156.154.42.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
156.154.42.0	PTR	net-156-154-42-0-24.subnets.neustar.com
156.154.42.11	A	wirelessdonotcall.info
156.154.42.11	A	wirelessdonotcall.us
156.154.42.11	A	tcpacompliance.com
156.154.42.13	A	ebill.neustar.biz
156.154.42.14	A	stssp.neustar.biz
156.154.42.15	A+PTR	spro.neustar.biz
156.154.42.17	A+PTR	preview.attmcommerce.biz
156.154.42.19	A	cscapi.neustar.biz
156.154.42.23	A	dm.neustar.us
156.154.42.24	A	directory.neustar.us
156.154.42.25	A+PTR	ns8.neustar.com
156.154.42.27	A	oms.neustar.biz
156.154.42.28	A	portps-legacy.neustar.biz
156.154.42.29	A+PTR	portpsnsp.neustar.biz
156.154.42.31	PTR	whois.tel
156.154.42.34	PTR	readyfortakeoff.biz
156.154.42.34	PTR	spotmorebusiness.biz
156.154.42.34	PTR	getmy.cn
156.154.42.36	A+PTR	info.xri.net
156.154.42.36	A	extranet.inames.net
156.154.42.37	A	forregistrars.neulevel.biz
156.154.42.38	A	www.inames.net
156.154.42.38	A	inames.net
156.154.42.39	PTR	newlevel.biz
156.154.42.39	PTR	coregistrodemarcas.co
156.154.42.39	PTR	cosunriselookup.co
156.154.42.40	A+PTR	registry.neustar.us
156.154.42.41	A	usshortcodes.neuweb.biz
156.154.42.43	A+PTR	stnpac-ncc.neustar.biz
156.154.42.43	A	ncc.neustar.biz
156.154.42.45	PTR	vendor.neustar.biz
156.154.42.45	A	vendor.eglb.neustar.com
156.154.42.46	A+PTR	cms.neustar.biz
156.154.42.46	PTR	wsapi.neustar.biz
156.154.42.46	A+PTR	wscc.neustar.biz
156.154.42.47	A+PTR	autodiscover.neustar.biz
156.154.42.47	A+PTR	neumail.neustar.biz
156.154.42.47	A+PTR	owa.neustar.biz
156.154.42.49	A	totalview.neuweb.biz
156.154.42.49	A	registry.neustar.biz
156.154.42.50	A+PTR	stulhprob1.ultra.neustar.com
156.154.42.50	PTR	ultrareporting.neustar.biz
156.154.42.52	A	tcpacompliance.org
156.154.42.52	A	tcpacompliance.net
156.154.42.52	A	wirelessdonotcall.org
156.154.42.53	A+PTR	plus.xdi.net
156.154.42.55	A+PTR	pr-st-www-ultratools-com.neustar.biz
156.154.42.56	A+PTR	flowroute.neustar.biz
156.154.42.56	A+PTR	atlantech-port.neustar.biz
156.154.42.56	PTR	vprovaltpr.neustar.biz
156.154.42.58	A	numbering-st.neuweb.biz
156.154.42.58	A	numbering.neustar.biz
156.154.42.58	A	numbering.neuweb.biz
156.154.42.62	A+PTR	api-portps.neustar.biz
156.154.42.63	A+PTR	www.ownit.nyc
156.154.42.68	A+PTR	interestedin.us
156.154.42.69	PTR	xri.net
156.154.42.69	A	proxy.xri.net
156.154.42.69	A	public.xdi.org
156.154.42.70	A	cricket-port-test.neustar.com
156.154.42.71	A+PTR	www.locality-whois-temp.neustar.us
156.154.42.72	A+PTR	directory-temp.neustar.us
156.154.42.73	A+PTR	dm-temp.neustar.us
156.154.42.74	A+PTR	secforregistrars.neustar.biz
156.154.42.76	A	forregistrars.neustar.biz
156.154.42.77	A+PTR	newforregistrars.neustar.biz
156.154.42.78	A+PTR	dmpp.neustar.us
156.154.42.81	A+PTR	fsdevsso.neustar.biz
156.154.42.82	A+PTR	devsmsso.neustar.biz
156.154.42.83	A+PTR	fsuatsso.neustar.biz
156.154.42.90	A+PTR	itrs-urd.neustar.biz
156.154.42.91	A+PTR	directorypp.neustar.us
156.154.42.92	A+PTR	www.localitypp-whois.neustar.us
156.154.42.175	A+PTR	itrs-qe-http.neustar.biz
156.154.42.176	A+PTR	itrs-qe-qi.neustar.biz
156.154.42.177	A+PTR	itrs-qe-urd-acq.neustar.biz
156.154.42.178	A+PTR	itrs-qe-urd.neustar.biz
156.154.42.179	A+PTR	itrs-trial-urd.neustar.biz
156.154.42.180	A+PTR	rtmsmultiqa.va.neustar.com
156.154.42.181	A+PTR	rtmsmultidev.va.neustar.com
156.154.42.182	A+PTR	crop1-portps.neustar.biz
156.154.42.187	A+PTR	ebill-test.neustar.biz
156.154.42.187	A+PTR	pp-securesso.neustar.biz
156.154.42.190	A+PTR	test.neustarcare.com
156.154.42.190	A+PTR	neustarcare.com
156.154.42.190	A	www.neustarcare.org
156.154.42.194	A+PTR	pathfinder-cte.neustar.biz
156.154.42.195	A+PTR	pathfinder-cte-pi.neustar.biz
156.154.42.196	A+PTR	sipix12-cte.neustar.biz
156.154.42.197	A+PTR	sipix12-cte-si.neustar.biz
156.154.42.198	A+PTR	sipix12-cte-pi.neustar.biz
156.154.42.199	A+PTR	sipix12-cte-lnp.neustar.biz
156.154.42.222	A	js.eglb.quova.com
156.154.42.226	PTR	portingxpress.biz
156.154.42.226	PTR	nic.us
156.154.42.226	PTR	socialscoop.biz
156.154.42.227	A+PTR	qa-www-ultratools-com.neustar.biz
156.154.42.229	A+PTR	qa.tcpacompliance.us
156.154.42.232	PTR	byod.neustar.biz
156.154.42.233	A+PTR	pp.neufed.neustar.biz
156.154.42.233	A+PTR	dev.neufed.neustar.biz
156.154.42.234	A+PTR	nsp-pp.neustar.biz
156.154.42.235	A+PTR	ote.xri.net
156.154.42.236	A+PTR	ote.bang.xri.net
156.154.42.237	A+PTR	ote.at.xri.net
156.154.42.238	PTR	ote.equal.xri.net
156.154.42.238	A+PTR	equalote.xdi.net
156.154.42.241	A+PTR	itrs-trial-http.neustar.biz
156.154.42.242	PTR	itrs-trial-pi.neustar.biz
156.154.42.243	A+PTR	itrs-trial.neustar.biz
156.154.42.246	A	mpcsportlookupgui.neustar.com
156.154.42.246	A	testcscapi.neustar.biz
156.154.42.249	A	test.usshortcodes.com