Robtex

Up: 72.30.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 72.30.3.0/25
Down right: 72.30.3.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.30.3.5	PTR	rtc106.stage.ls.sk1.yahoo.com
72.30.3.5	A	vl-121.slb5-67-pda.bf1.yahoo.com
72.30.3.10	A+PTR	media-router-flurry1.prod.media.vip.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
72.30.3.18	PTR	fe3.latam.weather.sk1.yahoo.com
72.30.3.18	A	insights-log.g04.yahoodns.net
72.30.3.20	PTR	fe2-vm1.eu.weather.sk1.yahoo.com
72.30.3.20	A	proxy.docker.ops.g04.yahoodns.net
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
72.30.3.38	A	ssa-proxy.g03.yahoodns.net
72.30.3.40	A	iws-dpa.gemini.gysm.yahoodns.net
72.30.3.42	A+PTR	pr-east2.pbp.vip.bf1.yahoo.com
72.30.3.42	A	ds-ycpi-pr-ybp.gysm.yahoodns.net
72.30.3.43	PTR	unknown.yahoo.com
72.30.3.43	A	ads.funbox.com
72.30.3.43	A	adserving.budsinc.com
72.30.3.44	A	ycpproxy.psi.vip.bf1.yahoo.com
72.30.3.46	A	ui.psi.vip.bf1.yahoo.com
72.30.3.47	PTR	fed18.image.search.sk1.yahoo.com
72.30.3.47	A	page.fy.b.shop.a03.yahoodns.net
72.30.3.50	PTR	shared04-vm3.dev.ypost.sk1.yahoo.com
72.30.3.50	A	beap203.cbs.vip.bf1.yahoo.com
72.30.3.50	A	beap200.cb.g01.yahoodns.net
72.30.3.51	PTR	shared04-vm4.dev.ypost.sk1.yahoo.com
72.30.3.51	A	fe3.cbs.vip.bf1.yahoo.com
72.30.3.55	A+PTR	sky400-2.mail.vip.bf2.yahoo.com
72.30.3.55	A	internal.imap.mail.g03.yahoodns.net
72.30.3.56	PTR	unknown.yahoo.com
72.30.3.56	A	pr-bh-bucket.pbp.vip.bf1.yahoo.com
72.30.3.58	PTR	di1.dev.media.search.sk1.yahoo.com
72.30.3.58	A	gops.use45.mobstor.vip.bf1.yahoo.com
72.30.3.60	PTR	unknown-72-30-3-x.yahoo.com
72.30.3.60	A	geo-applefinance-cache.internal.query.g03.yahoodns.net
72.30.3.60	A	media-router-apple1.prod.media.vip.bf1.yahoo.com
72.30.3.61	PTR	unknown.yahoo.com
72.30.3.61	A	media-router-brb1.prod.media.g03.yahoodns.net
72.30.3.61	A	ds-fp2.wg1.b.yahoo.com
72.30.3.62	PTR	unknown-72-30-3-x.yahoo.com
72.30.3.62	A	media-router-flurry4.prod.media.vip.bf1.yahoo.com
72.30.3.62	A	media-router-flurry3.prod.media.wg1.b.yahoo.com
72.30.3.80	PTR	unknown.yahoo.com
72.30.3.80	A	ue1.health.flickr.g00.yahoodns.net
72.30.3.80	A	ue-ycpi-shed-25.gycpi.b.yahoodns.net
72.30.3.81	A	fealpha.oss.search.vip.sk1.yahoo.com
72.30.3.82	PTR	unknown-72-30-3-x.yahoo.com
72.30.3.85	PTR	ipr-prdweb.corpapps.vip.bf1.yahoo.com
72.30.3.85	A	ipr-prdweb.g04.yahoodns.net
72.30.3.88	A	iws.gemini.ysm.yahoodns.net
72.30.3.89	PTR	api20.ls.sk1.yahoo.com
72.30.3.89	A	www.yahooapis.com
72.30.3.92	A	api.profile.lgg1.b.yahoo.com
72.30.3.92	A	profile1.member.vip.bf1.yahoo.com
72.30.3.93	PTR	rtc2210.ls.sk1.yahoo.com
72.30.3.93	A	api.admanager.yahoo.com
72.30.3.93	A	api.gemini.yahoo.com
72.30.3.94	PTR	qrs103.ls.sk1.yahoo.com
72.30.3.94	A	fo-fe-rw-real.fantasysports.a03.yahoodns.net
72.30.3.94	A	api-rw.fantasysports.yahoo.com
72.30.3.134	PTR	t1-vm7.bdt2.store.sk1.yahoo.com
72.30.3.163	A	rtc2204.ls.sk1.yahoo.com