Robtex

Up: 98.138.48.0/23
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Down left: 98.138.49.0/25
Down right: 98.138.49.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
98.138.49.4	PTR	po-20.bas2-2-apg.ne1.yahoo.com
98.138.49.8	A+PTR	slb2-2-apg.ne1.yahoo.com
98.138.49.11	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.11	A	beap1.cb.g01.yahoodns.net
98.138.49.11	A	beap3.cbs.vip.ne1.yahoo.com
98.138.49.12	PTR	calgate1.cal.vip.ne1.yahoo.com
98.138.49.12	A	caldav.calendar.yahoo.com
98.138.49.12	A	it.calendar.yahoo.com
98.138.49.13	A+PTR	sarq.ngd.vip.ne1.yahoo.com
98.138.49.15	A+PTR	sarq-analytics.ngd.vip.ne1.yahoo.com
98.138.49.20	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.23	PTR	unknown.yahoo.com
98.138.49.23	A	spdc.pbp.vip.ne1.yahoo.com
98.138.49.33	A+PTR	range.rm.vip.ne1.yahoo.com
98.138.49.34	PTR	cms1.ngd.vip.ne1.yahoo.com
98.138.49.34	A	extops.rm.vip.ne1.yahoo.com
98.138.49.36	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.36	A	yoda.flurry.vip.ne1.yahoo.com
98.138.49.36	A	flurry.yap.prod.g04.yahoodns.net
98.138.49.39	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.39	A	beap200.cb.g01.yahoodns.net
98.138.49.39	A	sarq-beta.ngd.vip.ne1.yahoo.com
98.138.49.40	A+PTR	sarq-beta.ngd.vip.ne1.yahoo.com
98.138.49.41	A+PTR	extops.rm.vip.ne1.yahoo.com
98.138.49.42	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.42	A	ad.marschannels.com
98.138.49.42	A	fd-world.ngd.ysm.yahoodns.net
98.138.49.43	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.43	A	ad.marschannels.com
98.138.49.43	A	fd-world.ngd.ysm.yahoodns.net
98.138.49.44	PTR	unknown.yahoo.com
98.138.49.44	A	ad.marschannels.com
98.138.49.44	A	mpr1.ngd.vip.ne1.yahoo.com
98.138.49.45	PTR	sarq01.ngd.vip.ne1.yahoo.com
98.138.49.45	A	fe3.cbs.vip.ne1.yahoo.com
98.138.49.66	A+PTR	ats1.fp.vip.ne1.yahoo.com
98.138.49.66	A	ca.movies.yahoo.com
98.138.49.66	A	ve.yahoo.com
98.138.49.69	A+PTR	mta-rhel-v1.mail.vip.ne1.yahoo.com
98.138.49.70	PTR	unknown-98-138-49-x.yahoo.com
98.138.49.70	A	sdbas.ysm.vip.ne1.yahoo.com
98.138.49.71	PTR	unknown.yahoo.com
98.138.49.71	A	media-router-brb1.prod.media.vip.ne1.yahoo.com
98.138.49.71	A	geo-atsv2.prod.media.g03.yahoodns.net
98.138.49.84	PTR	unknown.yahoo.com
98.138.49.84	A	ads.creafi-online-media.com
98.138.49.84	A	fp-beaconeater.wg1.b.yahoo.com
98.138.49.92	PTR	spcms.pbp.vip.ne1.yahoo.com