Robtex

Up: 218.5.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 218.5.56.0/22
Down right: 218.5.60.0/22

IP	Type	Hostname
218.5.56.66	PTR	66.56.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.58.85	PTR	85.58.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.59.129	PTR	129.59.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.59.132	PTR	132.59.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.60.65	PTR	65.60.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.27	PTR	27.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.35	PTR	35.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.41	PTR	41.61.5.218.board.xm.fj.dynamic.163data.com.cn
218.5.61.42	PTR	42.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.73	PTR	73.61.5.218.board.xm.fj.dynamic.163data.com.cn
218.5.61.90	PTR	90.61.5.218.board.xm.fj.dynamic.163data.com.cn
218.5.61.104	PTR	104.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.153	PTR	153.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.154	PTR	154.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.162	PTR	162.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.187	PTR	187.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.61.210	PTR	210.61.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.62.162	PTR	162.62.5.218.broad.xm.fj.dynamic.163data.com.cn
218.5.63.92	PTR	92.63.5.218.broad.xm.fj.dynamic.163data.com.cn