Robtex

Up: 106.10.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 106.10.168.0/22
Down right: 106.10.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
106.10.168.42	A+PTR	mta1010.mail.sg3.yahoo.com
106.10.168.62	A	mta1030.mail.sg3.yahoo.com
106.10.168.120	PTR	redir.biz.mail.vip.sg3.yahoo.com
106.10.168.120	A	mail.sex2nigth.com
106.10.168.120	A	mail.databinds.com
106.10.168.137	A	mta1041.mail.sg3.yahoo.com
106.10.168.138	A	mta1042.mail.sg3.yahoo.com
106.10.168.157	A	mta1061.mail.sg3.yahoo.com
106.10.168.160	A	mta1064.mail.sg3.yahoo.com
106.10.168.173	A	mta1077.mail.sg3.yahoo.com
106.10.168.193	A	mta1097.mail.sg3.yahoo.com
106.10.168.202	A+PTR	mta1106.mail.sg3.yahoo.com
106.10.168.219	A+PTR	mta1123.mail.sg3.yahoo.com
106.10.168.220	A	mta1124.mail.sg3.yahoo.com
106.10.169.0	PTR	web193920.mail.sg3.yahoo.com
106.10.169.15	A	htc.imap.mail.yahoo.com
106.10.169.15	A	imap-ssl.mail.yahoo.com
106.10.169.15	A	android.imap.mail.yahoo.com
106.10.169.32	A	vxs192501.mail.sg3.yahoo.com
106.10.169.47	A	pcm107.mail.sg3.yahoo.com
106.10.169.109	A	htc.imap.mail.yahoo.com
106.10.169.109	A	imap-ssl.mail.yahoo.com
106.10.169.109	A	android.imap.mail.yahoo.com
106.10.169.116	A	pop-star-new.mail.gm0.yahoodns.net
106.10.169.116	A	fo-tw-sg-pop-star-new.mail.gm0.yahoodns.net
106.10.169.116	A	sg-pop-star-new.mail.gm0.yahoodns.net
106.10.169.125	A	vcs-p-m-y-com-vn.mail.vip.sg3.yahoo.com
106.10.169.126	A	vcs-p-myc.mail.vip.sg3.yahoo.com
106.10.169.156	A	htc.imap.mail.yahoo.com
106.10.169.156	A	imap-ssl.mail.yahoo.com
106.10.169.156	A	android.imap.mail.yahoo.com
106.10.169.159	A	htc.imap.mail.yahoo.com
106.10.169.159	A	imap-ssl.mail.yahoo.com
106.10.169.159	A	android.imap.mail.yahoo.com
106.10.169.194	A+PTR	imap15.mail.vip.sg3.yahoo.com
106.10.169.194	A	htc.imap.mail.yahoo.com
106.10.169.194	A	imap-ssl.mail.yahoo.com
106.10.169.195	PTR	imap16.mail.vip.sg3.yahoo.com
106.10.169.195	A	htc.imap.mail.yahoo.com
106.10.169.195	A	imap-ssl.mail.yahoo.com
106.10.169.201	A+PTR	ls10056.mail.sg3.yahoo.com
106.10.169.202	A+PTR	ls10057.mail.sg3.yahoo.com
106.10.169.203	A+PTR	ls10058.mail.sg3.yahoo.com
106.10.169.211	A	web193906.mail.sg3.yahoo.com
106.10.169.227	A	pop-tnz.mail.gm0.yahoodns.net
106.10.169.227	A	pop-tnz-new.mail.gm0.yahoodns.net
106.10.169.231	A	pop3r.tnz.yahoo.com
106.10.169.231	A	pop1-ssl.tnz.mail.vip.sg3.yahoo.com
106.10.169.238	A	web193806.mail.sg3.yahoo.com
106.10.169.240	A+PTR	web193808.mail.sg3.yahoo.com
106.10.169.254	A	web193902.mail.sg3.yahoo.com
106.10.170.42	A	sugg.hk.search.yahoo.net
106.10.170.75	A+PTR	order.geo.vip.sg3.yahoo.com
106.10.170.75	A	in.business.yahoo.com
106.10.170.75	A	sg-ord.in.geo.g03.yahoodns.net
106.10.170.118	A	util2.qa.geo.sg3.yahoo.com
106.10.170.120	PTR	unknown-106-10-170-x.yahoo.com
106.10.170.120	A	csync-bcp.ydn.g01.yahoodns.net
106.10.170.120	A	pprd1-rtr1.manhattan.vip.sg3.yahoo.com
106.10.170.144	PTR	yts.l7.search.vip.sg3.yahoo.com
106.10.170.144	A	yhs4.search.yahoo.com
106.10.170.144	A	br.yhs4.search.yahoo.com
106.10.170.153	PTR	unknown-106-10-170-x.yahoo.com
106.10.170.153	A	sdarla.gapx.yahoodns.net
106.10.170.155	PTR	mg61.mail.vip.sg3.yahoo.com
106.10.170.155	A	leizel.mg.mail.yahoo.com
106.10.170.155	A	global.mg.mail.gm0.yahoodns.net
106.10.170.212	A	ptn12.sg3.yahoo.com
106.10.171.0	PTR	unknown-106-10-171-x.yahoo.com
106.10.171.80	PTR	fe.intl.yhs.search.vip.sg3.yahoo.com
106.10.171.80	A	yhs4sea.search.ystg1.b.yahoo.com
106.10.171.108	A	openapis.login.g01.yahoodns.net
106.10.171.157	A	api03.shop.vis.sg3.yahoo.com
106.10.171.188	A	apac-sg.img.search.ystg1.b.yahoo.com
106.10.171.188	A	id.images.search.yahoo.com
106.10.172.152	A+PTR	c1.ah.vip.sg3.yahoo.com
106.10.172.152	A	c5.ah.g06.yahoodns.net
106.10.173.0	PTR	unknown-106-10-173-x.yahoo.com
106.10.173.240	A+PTR	pprd1-node45-lh1.manhattan.sg3.yahoo.com
106.10.174.34	A	zk01.mail.sg3.yahoo.com
106.10.174.36	A	mix900002.mail.sg3.yahoo.com
106.10.174.81	A	web194418.mail.sg3.yahoo.com
106.10.174.139	A+PTR	zk02.mail.sg3.yahoo.com
106.10.174.167	A	web193714.mail.sg3.yahoo.com
106.10.174.172	A	web193719.mail.sg3.yahoo.com
106.10.174.174	A	nfs194001.mail.sg3.yahoo.com
106.10.174.199	A	zk03.mail.sg3.yahoo.com