Robtex

Up: 202.165.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 202.165.100.0/23
Down right: 202.165.102.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
202.165.100.4	PTR	unknown-202-165-100-x.yahoo.com
202.165.100.23	PTR	unknown-202-165-100-x.yahoo.com
202.165.100.87	A	web75.search.cnb.yahoo.com
202.165.100.90	PTR	unknown-202-165-100-x.yahoo.com
202.165.100.124	PTR	unknown-202-165-100-x.yahoo.com
202.165.100.160	A+PTR	cn.scs.msg.yahoo.com
202.165.100.161	A+PTR	cn.scs.msg.yahoo.com
202.165.100.162	A+PTR	cn.scs.msg.yahoo.com
202.165.101.0	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.2	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.4	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.5	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.10	A	c3560-k10.cnb.yahoo.com
202.165.101.16	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.23	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.27	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.27	A	c3560-g1.ops.cnb.yahoo.com
202.165.101.29	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.32	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.35	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.37	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.38	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.39	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.45	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.52	A+PTR	c3750-e1.ops.cnb.yahoo.com
202.165.101.62	A	c2950-f9.ops.cnb.yahoo.com
202.165.101.65	A	c2970-f8.ops.cnb.yahoo.com
202.165.101.69	PTR	c2950-h13.ops.cnb.yahoo.com
202.165.101.73	A	c3550-f7.ops.cnb.yahoo.com
202.165.101.79	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.87	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.92	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.94	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.101	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.113	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.123	A	c3560-l13.ops.cnb.yahoo.com
202.165.101.124	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.127	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.128	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.129	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.141	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.157	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.158	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.159	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.165	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.166	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.167	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.168	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.169	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.170	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.171	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.172	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.174	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.180	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.181	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.187	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.196	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.203	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.206	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.248	PTR	unknown-202-165-101-x.yahoo.com
202.165.101.252	PTR	unknown-202-165-101-x.yahoo.com
202.165.102.43	A+PTR	partner.cn.yahoo.com
202.165.102.44	A+PTR	partner.cn.yahoo.com
202.165.102.61	A	web15607.mail.cnb.yahoo.com
202.165.102.69	PTR	web15702.mail.cnb.yahoo.com
202.165.102.70	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.81	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.83	A	web15803.mail.cnb.yahoo.com
202.165.102.87	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.92	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.96	A	smtp201.mail.cnb.yahoo.com
202.165.102.100	A	ksvi4.search.cnb.yahoo.com
202.165.102.101	A+PTR	smtp203.mail.cnb.yahoo.com
202.165.102.110	A	count.yisou.vip.cnb.yahoo.com
202.165.102.111	A+PTR	site.yisou.vip.cnb.yahoo.com
202.165.102.111	A	bbs.yisou.com
202.165.102.113	A+PTR	site.yisou.vip.cnb.yahoo.com
202.165.102.113	A	bbs.yisou.com
202.165.102.114	A	site.yisou.vip.cnb.yahoo.com
202.165.102.114	A	bbs.yisou.com
202.165.102.126	A	click1.3721.vip.cnb.yahoo.com
202.165.102.127	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.137	A+PTR	vxs15606.mail.cnb.yahoo.com
202.165.102.141	A	web15911.mail.cnb.yahoo.com
202.165.102.180	A+PTR	beacon5.sds.cnb.yahoo.com
202.165.102.181	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.191	A+PTR	partner.cn.yahoo.com
202.165.102.194	A+PTR	img.cn.mail.yahoo.com
202.165.102.195	A+PTR	img.cn.mail.yahoo.com
202.165.102.198	A+PTR	mm.cn.msg.yahoo.com
202.165.102.199	A+PTR	mm.cn.msg.yahoo.com
202.165.102.205	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.219	A+PTR	mm.cn.msg.yahoo.com
202.165.102.220	A+PTR	mm.cn.msg.yahoo.com
202.165.102.221	A+PTR	mm.cn.msg.yahoo.com
202.165.102.222	A+PTR	mm.cn.msg.yahoo.com
202.165.102.228	PTR	new-vxs15001.mail.cnb.yahoo.com
202.165.102.241	PTR	unknown-202-165-102-x.yahoo.com
202.165.102.248	PTR	unknown-202-165-102-x.yahoo.com
202.165.103.5	PTR	unknown-202-165-103-x.yahoo.com
202.165.103.6	A	si-a4.cnb.yahoo.com
202.165.103.37	PTR	unknown-202-165-103-x.yahoo.com
202.165.103.37	A	1pai.cn
202.165.103.37	A	1pai.com.cn
202.165.103.38	PTR	rd4.www.cnb.yahoo.com
202.165.103.38	A	1pai.cn
202.165.103.38	A	1pai.com.cn
202.165.103.47	PTR	ywatch1.cnb.yahoo.com
202.165.103.53	PTR	unknown-202-165-103-x.yahoo.com
202.165.103.53	A	web15908.mail.cnb.yahoo.com
202.165.103.85	A	db2.edit.cnb.yahoo.com
202.165.103.98	A	sgproxy3.mail.cnb.yahoo.com
202.165.103.103	A	ab2.login.cnb.yahoo.com
202.165.103.112	A	w3.sports.cnb.yahoo.com
202.165.103.113	PTR	unknown-202-165-103-x.yahoo.com
202.165.103.145	A+PTR	partner.cn.yahoo.com
202.165.103.162	PTR	unknown-202-165-103-x.yahoo.com
202.165.103.174	PTR	unknown-202-165-103-x.yahoo.com
202.165.103.174	A	82585.com
202.165.103.226	PTR	unknown-202-165-103-x.yahoo.com