Robtex

Up: 72.30.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 72.30.0.0/20
Down right: 72.30.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.30.0.0	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.2	PTR	xe-4-1-0.msr1.sk1.yahoo.com
72.30.0.16	A	ha20-mta.dns.bf1.yahoo.com
72.30.0.18	A	ha27-mta.dns.bf1.yahoo.com
72.30.0.34	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.72	A	ha2-crawl.dns.bf1.yahoo.com
72.30.0.73	A	ha3-crawl.dns.bf1.yahoo.com
72.30.0.74	A	ha4-crawl.dns.bf1.yahoo.com
72.30.0.75	A	ha5-crawl.dns.bf1.yahoo.com
72.30.0.97	A+PTR	ha84-mta.dns.bf1.yahoo.com
72.30.0.100	A	ha90-mta.dns.bf1.yahoo.com
72.30.0.101	A	ha57-mta.dns.bf1.yahoo.com
72.30.0.102	A	ha59-mta.dns.bf1.yahoo.com
72.30.0.128	PTR	ge-0-0-4.msr1.sk1.yahoo.com
72.30.0.130	PTR	ge-1-0-4.msr1.sk1.yahoo.com
72.30.0.160	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.192	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.193	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.224	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.227	PTR	unknown-72-30-0-x.yahoo.com
72.30.0.239	A	lo0.bas-f1.sk1.yahoo.com
72.30.0.250	A	lo0.msr1.sk1.yahoo.com
72.30.0.251	A	lo0.msr2.sk1.yahoo.com
72.30.1.1	PTR	unknown-72-30-1-x.yahoo.com
72.30.1.3	PTR	gi-2-2.bas-a1.sk1.yahoo.com
72.30.1.193	PTR	unknown-72-30-1-x.yahoo.com
72.30.2.0	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.1	PTR	ha1.vl-121.usw1-8-pda.bf1.yahoo.com
72.30.2.2	A	ha2.vl-121.usw1-8-pda.bf1.yahoo.com
72.30.2.3	PTR	vl-121.usw1-8-pda.bf1.yahoo.com
72.30.2.3	A	vl-828.bas-k1.sk1.yahoo.com
72.30.2.16	A	r0-828.dns.sk1.yahoo.com
72.30.2.17	A	r1-828.dns.sk1.yahoo.com
72.30.2.32	A	ydb2.sg1.blog.vip.sk1.yahoo.com
72.30.2.33	PTR	unknown.yahoo.com
72.30.2.33	A	shared04-vm3.qa.ypost.sk1.yahoo.com
72.30.2.34	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.34	A	icebreaker-serve.vads.vip.bf1.yahoo.com
72.30.2.35	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.40	A	w1.fp.vip.sk1.yahoo.com
72.30.2.64	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.69	A	gnhost.oss.search.vip.sk1.yahoo.com
72.30.2.72	A	fedata.oss.search.vip.sk1.yahoo.com
72.30.2.73	A	mt.oss.search.vip.sk1.yahoo.com
72.30.2.74	A	ats1.apple-finance.yql.vip.bf1.yahoo.com
72.30.2.96	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.98	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.99	PTR	rtc2115.ls.sk1.yahoo.com
72.30.2.104	A	shared04-vm4.qa.ypost.sk1.yahoo.com
72.30.2.106	A	beacon.vpg.g03.yahoodns.net
72.30.2.107	A	prod4cws1.xobni.vip.bf1.yahoo.com
72.30.2.107	A	any-prod4cws.xobni.a03.yahoodns.net
72.30.2.128	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.129	PTR	unknown.yahoo.com
72.30.2.129	A	secure1.fp.vip.sk1.yahoo.com
72.30.2.130	PTR	unknown.yahoo.com
72.30.2.130	A	ydb1.sg1.blog.vip.sk1.yahoo.com
72.30.2.131	A+PTR	shared04-vm5.qa.ypost.sk1.yahoo.com
72.30.2.134	A	coolpreviews.com
72.30.2.181	A	gw.iris.vip.bf1.yahoo.com
72.30.2.181	A	gateway.a03.yahoodns.net
72.30.2.182	A	v4-any-pr-bh.ybp.ysm.yahoodns.net
72.30.2.182	A	ds-pr-bh.ybp.gysm.yahoodns.net
72.30.2.192	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.194	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.195	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.199	A	gossip2.search.vip.sk1.yahoo.com
72.30.2.204	A	thm01.image.search.vip.sk1.yahoo.com
72.30.2.207	A	thm04.image.search.vip.sk1.yahoo.com
72.30.2.216	A	thm13.image.search.vip.sk1.yahoo.com
72.30.2.225	PTR	unknown-72-30-2-x.yahoo.com
72.30.2.226	A	shared04-vm6.qa.ypost.sk1.yahoo.com
72.30.2.227	A+PTR	srv2.sjc.yahoo.com
72.30.2.229	A	origin1.vyc.vip.sk1.yahoo.com
72.30.2.229	A	static.video.yahoo.com
72.30.3.5	A	vl-121.slb5-67-pda.bf1.yahoo.com
72.30.3.10	A	media-router-flurry7.prod.media.wg1.b.yahoo.com
72.30.3.10	A	media-router-flurry1.prod.media.wg1.b.yahoo.com
72.30.3.10	A	media-router-flurry1.prod.media.vip.bf1.yahoo.com
72.30.3.34	PTR	fan1.sports.vip.bf1.yahoo.com
72.30.3.34	A	fr.ligue1.fantasysports.yahoo.com
72.30.3.34	A	fo-fe-rw-real.fantasysports.a03.yahoodns.net
72.30.3.80	A	ue1.health.flickr.g00.yahoodns.net
72.30.3.80	A	ue-ycpi-shed-25.gycpi.b.yahoodns.net
72.30.3.80	A	ai.external.g03.yahoodns.net
72.30.3.94	A	fo-fe-rw-real.fantasysports.a03.yahoodns.net
72.30.3.163	A	rtc2204.ls.sk1.yahoo.com
72.30.9.225	A	fan-draft146.sports.bf1.yahoo.com
72.30.9.226	PTR	unknown-72-30-9-x.yahoo.com
72.30.9.230	A	fan-draft104.sports.bf1.yahoo.com
72.30.9.230	A	fan-draft104-east.stream.sports.yahoo.com
72.30.9.232	A	fan-draft148.sports.bf1.yahoo.com
72.30.10.32	PTR	unknown-72-30-10-x.yahoo.com
72.30.10.66	PTR	unknown-72-30-10-x.yahoo.com
72.30.10.67	PTR	unknown-72-30-10-x.yahoo.com
72.30.10.67	A	loadfb2.bkln.sk1.yahoo.com
72.30.10.97	PTR	unknown-72-30-10-x.yahoo.com
72.30.10.98	PTR	unknown-72-30-10-x.yahoo.com
72.30.10.98	A	fan-draft189.sports.bf1.yahoo.com
72.30.10.100	A	fan-draft185.sports.bf1.yahoo.com
72.30.10.160	PTR	rtc111.stage.ls.sk1.yahoo.com
72.30.10.160	A	fan-draft186.sports.bf1.yahoo.com
72.30.10.218	A	ics.calendar.yahoo.com
72.30.10.218	A	zcs1.cal.vip.sk1.yahoo.com
72.30.11.187	A	ssl-img.a00.yahoodns.net
72.30.11.242	A	sonictest-242.mail.bf1.yahoo.com
72.30.11.242	A	a323.yahoofs.a00.yahoodns.net
72.30.11.242	A	f32.ymdb.vip.sk1.yahoo.com
72.30.12.27	A	r3-f.bpk.dns.sk1.yahoo.com
72.30.12.31	A	fe1.yosup.g1.b.yahoo.com
72.30.12.32	A+PTR	thmyts1.image.search.vip.sk1.yahoo.com
72.30.12.32	A	img.thumbnails.g00.yahoodns.net
72.30.12.32	A	any-img.thumbnails.a00.yahoodns.net
72.30.12.175	A	rtc1310.ls.sk1.yahoo.com
72.30.13.204	A	srd-new.yahoo.com
72.30.13.205	A	srd-new.yahoo.com
72.30.13.206	A	srd-new.yahoo.com
72.30.13.206	A	devnull.yahoo.com
72.30.14.0	PTR	unknown-72-30-14-x.yahoo.com
72.30.14.11	A	b167.crawl.yahoo.net
72.30.14.64	A+PTR	b101.crawl.yahoo.net
72.30.14.65	A+PTR	b102.crawl.yahoo.net
72.30.14.67	PTR	f36.ymdb.vip.sk1.yahoo.com
72.30.14.68	A	b105.crawl.yahoo.net
72.30.14.69	A	b106.crawl.yahoo.net
72.30.14.96	PTR	unknown-72-30-14-x.yahoo.com
72.30.14.97	A+PTR	b134.crawl.yahoo.net
72.30.14.98	A+PTR	b135.crawl.yahoo.net
72.30.14.99	PTR	b136.crawl.yahoo.net
72.30.14.102	A	b139.crawl.yahoo.net
72.30.14.106	A	b143.crawl.yahoo.net
72.30.14.129	A+PTR	ha1.vl-211.bas-1-flk.bf1.yahoo.com
72.30.14.130	A+PTR	ha2.vl-211.bas-1-flk.bf1.yahoo.com
72.30.14.131	A+PTR	vl-211.bas1-1-flk.bf1.yahoo.com
72.30.14.160	PTR	unknown-72-30-14-x.yahoo.com
72.30.14.161	PTR	unknown-72-30-14-x.yahoo.com
72.30.14.194	PTR	unknown-72-30-14-x.yahoo.com
72.30.16.157	A	sync400008-1.mail.bf1.yahoo.com
72.30.17.41	A	sync400079-2.mail.bf1.yahoo.com
72.30.17.101	A	idpproxy-dmsw1-4765.idp.inktomisearch.com
72.30.21.35	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.35	A	sk1ugadm1002.yst.yahoo.net
72.30.21.49	A	ug359702.yst.yahoo.net
72.30.21.60	A	ug317023.yst.yahoo.net
72.30.21.71	A	r301001.inktomisearch.com
72.30.21.99	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.100	A	ldbdev1.inktomisearch.com
72.30.21.102	A	r301002.inktomisearch.com
72.30.21.117	A	urldb1000vip.inktomisearch.com
72.30.21.118	A	urldb1001vip.inktomisearch.com
72.30.21.128	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.157	A	httpproxy-sk1.idp.inktomisearch.com
72.30.21.158	A	httpproxy-sk1.idp.inktomisearch.com
72.30.21.159	A	httpproxy-sk1.idp.inktomisearch.com
72.30.21.161	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.162	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.163	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.192	PTR	unknown-72-30-21-x.yahoo.com
72.30.21.225	PTR	unknown-72-30-21-x.yahoo.com
72.30.22.3	A+PTR	po7-fab2-1-gdc.bf1.yahoo.com
72.30.22.36	A	ae10.clr2-a-gdc.bf1.yahoo.com
72.30.22.232	A	athens.zts.g04.yahoodns.net
72.30.24.1	A	lo0.egr2-2-pdb.bf1.yahoo.com
72.30.24.2	A	lo0.egr3-3-pdb.bf1.yahoo.com
72.30.24.9	A	lo0.usw2-10-pdb.bf1.yahoo.com
72.30.24.90	A	lo0.tor31-91-pdb.bf1.yahoo.com
72.30.24.112	A	lo0.tor55-113-pdb.bf1.yahoo.com
72.30.24.139	A	lo0.tor82-140-pdb.bf1.yahoo.com
72.30.24.188	A	lo0.tor133-189-pdb.bf1.yahoo.com
72.30.25.11	A	lo0.tor216-268-pdb.bf1.yahoo.com
72.30.25.41	A	lo0.tor247-298-pdb.bf1.yahoo.com
72.30.25.45	A	lo0.tor251-302-pdb.bf1.yahoo.com
72.30.25.65	A	lo0.tor284-322-pdb.bf1.yahoo.com
72.30.25.86	A	lo0.tor306-343-pdb.bf1.yahoo.com
72.30.25.110	A	lo0.tor329-367-pdb.bf1.yahoo.com
72.30.25.127	A	lo0.tor347-384-pdb.bf1.yahoo.com
72.30.25.180	A	lo0.tor383-437-pdb.bf1.yahoo.com
72.30.27.1	A	dns1.aol.com
72.30.28.0	PTR	unknown-72-30-28-x.yahoo.com
72.30.28.29	A	bf1liveint02.atlas.cdn.bf1.yahoo.com
72.30.28.37	A	smtp418.mail.bf1.yahoo.com
72.30.28.47	A	smtp421.mail.bf1.yahoo.com
72.30.28.48	A	smtpgate102.mob.mail.bf1.yahoo.com
72.30.28.108	A	bf1liveint01.atlas.cdn.bf1.yahoo.com
72.30.28.110	A	smtpgate101.mob.mail.bf1.yahoo.com
72.30.28.112	A	smtp417.mail.bf1.yahoo.com
72.30.28.114	A	smtp419.mail.bf1.yahoo.com
72.30.28.128	PTR	unknown-72-30-28-x.yahoo.com
72.30.28.129	PTR	vl-120.tor41-45-pda.bf1.yahoo.com
72.30.28.130	A+PTR	yadbuilder1.prod.manhattan.bf1.yahoo.com
72.30.28.131	PTR	iab0402410000.ostk.bm.bf1.yahoo.com
72.30.28.137	A	137.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.138	A	138.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.141	A	141.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.160	PTR	beacon10.vpg.bf1.yahoo.com
72.30.28.161	A+PTR	734731.ostk.bm2.prod.bf1.yahoo.com
72.30.28.162	A+PTR	beacon11.vpg.bf1.yahoo.com
72.30.28.163	A+PTR	ats28.member.bf1.yahoo.com
72.30.28.165	A	17491494.ostk.bm2.prod.bf1.yahoo.com
72.30.28.192	PTR	unknown-72-30-28-x.yahoo.com
72.30.28.193	A+PTR	vl-120.tor42-46-pda.bf1.yahoo.com
72.30.28.194	PTR	860998.ostk.bm1.prod.bf1.yahoo.com
72.30.28.195	PTR	633832.ostk.bm1.prod.bf1.yahoo.com
72.30.28.204	A	204.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.207	A	207.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.208	A	ats13.member.bf1.yahoo.com
72.30.28.224	PTR	224.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.225	PTR	225.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.226	PTR	226.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.227	PTR	227.28.30.72.aprez.ostk.prod.bf1.yahoo.com
72.30.28.231	A	1069404.ostk.bm2.prod.bf1.yahoo.com
72.30.28.232	A	738210.ostk.bm2.prod.bf1.yahoo.com
72.30.28.234	A	bf1-sdarlaws-012.adx.bf1.yahoo.com
72.30.28.235	A	bf1-sdarlaws-011.adx.bf1.yahoo.com
72.30.29.162	A	fan-draft144.sports.bf1.yahoo.com
72.30.29.163	A	fan-draft125.sports.bf1.yahoo.com
72.30.29.164	A	fan-draft105.sports.bf1.yahoo.com
72.30.29.164	A	fan-draft105-east.stream.sports.yahoo.com
72.30.29.197	A	proxy1.yoscs.bf1.yahoo.com
72.30.30.14	A	q11.ycpi.bf1.yahoo.net
72.30.31.185	A	sync400036.mail.bf1.yahoo.com