Robtex

Up: 123.125.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 123.125.56.0/22
Down right: 123.125.60.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.125.56.13	PTR	mailsys.kaixin001.com.cn
123.125.56.14	PTR	mailsys.kaixin001.com.cn
123.125.56.19	PTR	mailsys.kaixin001.com.cn
123.125.56.20	A+PTR	mailsys.kaixin001.com.cn
123.125.56.20	A	kximg.cc
123.125.56.21	A+PTR	mailsys.kaixin001.com.cn
123.125.56.21	A	kximg.cc
123.125.56.24	PTR	mailsys.kaixin001.com.cn
123.125.56.25	PTR	mailsys.kaixin001.com.cn
123.125.56.27	PTR	mailsys.kaixin001.com.cn
123.125.56.42	PTR	kaixin001.com
123.125.56.43	PTR	kaihaikj.com
123.125.56.43	PTR	loftygame.com
123.125.56.43	A+PTR	corp.kaixin001.com
123.125.56.44	PTR	mailsys.kaixin001.com.cn
123.125.56.49	PTR	kaixin001.com
123.125.56.56	PTR	kaixin001.com
123.125.56.59	PTR	kaixin001.com
123.125.56.66	PTR	kaixin001.com
123.125.56.74	PTR	kaixin001.com
123.125.56.88	PTR	mailsys.kaixin001.com.cn
123.125.56.89	PTR	kaixin001.com
123.125.56.90	PTR	kaixin001.com
123.125.56.91	PTR	mailsys.kaixin001.com.cn
123.125.56.98	PTR	kaixin001.com
123.125.56.99	A+PTR	mailsys.kaixin001.com.cn
123.125.56.111	PTR	mailsys.kaixin001.com.cn
123.125.56.141	PTR	kaixin001.com
123.125.56.145	PTR	kaixin001.com
123.125.56.152	PTR	kaixin001.com
123.125.56.160	PTR	kaixin001.com
123.125.56.177	PTR	kaixin001.com
123.125.56.226	PTR	mailsys.kaixin001.com.cn
123.125.56.227	PTR	sh.login.cf.kaixin001.com.56.125.123.in-addr.arpa
123.125.56.228	PTR	mailsys.kaixin001.com.cn
123.125.56.229	PTR	mailsys.kaixin001.com.cn
123.125.56.242	PTR	mailsys.kaixin001.com.cn
123.125.56.243	PTR	mailsys.kaixin001.com.cn
123.125.56.249	PTR	mailsys.kaixin001.com.cn
123.125.56.250	PTR	mailsys.kaixin001.com.cn
123.125.56.252	PTR	mailsys.kaixin001.com.cn
123.125.57.13	A	ns4.kaixin001.com
123.125.57.13	A	ns4.loftygame.com
123.125.58.51	PTR	kaixin001.com
123.125.58.52	PTR	kaixin001.com
123.125.58.58	PTR	kaixin001.com
123.125.59.42	PTR	kaixin001.com
123.125.59.43	PTR	kaixin001.com
123.125.59.48	PTR	kaixin001.com
123.125.59.56	PTR	kaixin001.com
123.125.59.65	PTR	kaixin001.com
123.125.59.66	PTR	kaixin001.com
123.125.59.74	PTR	kaixin001.com
123.125.59.81	PTR	kaixin001.com
123.125.59.90	PTR	kaixin001.com
123.125.59.98	PTR	kaixin001.com
123.125.59.99	PTR	kaixin001.com
123.125.61.12	A	wiki.open.kaixin001.com