Robtex

Up: 123.185.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 123.185.0.0/19
Down right: 123.185.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.185.0.225	A	mail.jiuguangdl.com
123.185.7.2	PTR	2.7.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.8.129	PTR	129.8.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.9.11	A	maifangd.com
123.185.9.152	A	ekinn.cn
123.185.9.152	A	ekinn.net
123.185.9.158	A+PTR	mail.dhthx.com
123.185.9.239	A	www.dhthx.com
123.185.9.239	A	dhthx.com
123.185.9.243	A	sound-net.com
123.185.9.243	A	www.sound-net.com
123.185.11.131	PTR	131.11.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.13.2	PTR	2.13.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.13.192	PTR	192.13.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.14.2	PTR	2.14.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.17.130	PTR	130.17.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.18.125	A	ns1.tpddns.cn
123.185.21.2	PTR	2.21.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.23.129	PTR	129.23.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.26.241	A	teware.no-ip.biz
123.185.26.253	A	ddns.cnzhtour.com
123.185.28.130	PTR	130.28.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.30.128	PTR	128.30.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.35.2	PTR	2.35.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.35.190	A	luckybocean.com
123.185.40.131	PTR	131.40.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.41.1	PTR	1.41.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.41.247	A	mail.furao.com
123.185.41.248	A	www.dlsf.com.cn
123.185.43.129	PTR	129.43.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.43.243	A	mail1.3topcn.com
123.185.43.243	A	*.3topcn.com
123.185.43.243	A	www.jznr.com
123.185.44.194	PTR	194.44.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.45.64	PTR	64.45.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.46.21	A	ranko.cc
123.185.46.44	A	st-li.com
123.185.46.194	PTR	194.46.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.56.129	PTR	129.56.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.58.2	PTR	2.58.185.123.broad.dl.ln.dynamic.163data.com.cn
123.185.63.192	PTR	192.63.185.123.broad.dl.ln.dynamic.163data.com.cn