Robtex

Up: 87.248.100.0/23
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Down left: 87.248.100.0/25
Down right: 87.248.100.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.248.100.0	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.5	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.6	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.7	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.8	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.21	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.26	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.27	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.28	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.29	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.34	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.36	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.38	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.40	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.45	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.58	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.70	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.70	A	c4948-b11.ird.yahoo.com
87.248.100.71	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.71	A	c4948-b12.ird.yahoo.com
87.248.100.73	A+PTR	c4948-b14.ird.yahoo.com
87.248.100.74	PTR	c4948-b15.ird.yahoo.com
87.248.100.75	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.75	A	c4948-b16.ird.yahoo.com
87.248.100.76	A	c4948-b17.ird.yahoo.com
87.248.100.77	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.84	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.86	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.93	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.112	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.136	PTR	o1.ycpi.vip.ir2.yahoo.com
87.248.100.136	A	fd-geoycpi-uno.gycpi.b.yahoodns.net
87.248.100.136	A	ue-ycpi-shed-25.gycpi.b.yahoodns.net
87.248.100.137	PTR	o2.ycpi.vip.ir2.yahoo.com
87.248.100.137	A	fd-geoycpi-uno.gycpi.b.yahoodns.net
87.248.100.137	A	ue-ycpi-shed-25.gycpi.b.yahoodns.net
87.248.100.139	A+PTR	e1.ycpi.vip.ir2.yahoo.com
87.248.100.140	A+PTR	e2.ycpi.vip.ir2.yahoo.com
87.248.100.141	PTR	c4948-b82.ird.yahoo.com
87.248.100.141	A	t1.ycpi.vip.ir2.yahoo.com
87.248.100.144	PTR	c4948-b85.ird.yahoo.com
87.248.100.145	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.154	PTR	unknown-87-248-100-x.yahoo.com
87.248.100.154	A	c4948-b95.ird.yahoo.com
87.248.100.161	A	si-b1.ird.yahoo.com
87.248.100.168	A+PTR	media-router-apple71.prod.media.vip.ir2.yahoo.com
87.248.100.168	A	geo-applefinance-cache.internal.query.g03.yahoodns.net
87.248.100.169	PTR	c4948-b5.ird.yahoo.com
87.248.100.169	A	media-router-apple1.prod.media.vip.ir2.yahoo.com
87.248.100.174	A	c4948-b105.ird.yahoo.com
87.248.100.175	A+PTR	c4948-b106.ird.yahoo.com
87.248.100.200	A+PTR	c4948-b131.ird.yahoo.com
87.248.100.200	A	geo-yql.g05.yahoodns.net
87.248.100.200	A	sports-graphite.g01.yahoodns.net
87.248.100.203	A+PTR	c4948-b134.ird.yahoo.com
87.248.100.208	A+PTR	c4948-b139.ird.yahoo.com
87.248.100.208	A	yho.com
87.248.100.208	A	yahoo.co.uk
87.248.100.209	PTR	c4948-b140.ird.yahoo.com
87.248.100.212	PTR	c4948-b143.ird.yahoo.com
87.248.100.213	PTR	c4948-b144.ird.yahoo.com
87.248.100.214	PTR	c4948-b145.ird.yahoo.com
87.248.100.215	A+PTR	c4948-b146.ird.yahoo.com
87.248.100.216	PTR	c4948-b147.ird.yahoo.com
87.248.100.241	A	c4948-b172.ird.yahoo.com
87.248.100.255	PTR	unknown-87-248-100-x.yahoo.com