Robtex

Up: 182.239.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.239.84.0/23
Down right: 182.239.86.0/23

IP	Type	Hostname
182.239.85.1	PTR	182.239.85.1.hk.chinamobile.com
182.239.85.37	PTR	182.239.85.37.hk.chinamobile.com
182.239.85.66	PTR	182.239.85.66.hk.chinamobile.com
182.239.85.81	PTR	182.239.85.81.hk.chinamobile.com
182.239.85.153	PTR	182.239.85.153.hk.chinamobile.com
182.239.85.177	PTR	182.239.85.177.hk.chinamobile.com
182.239.85.233	PTR	182.239.85.233.hk.chinamobile.com
182.239.87.53	PTR	182.239.87.53.hk.chinamobile.com
182.239.87.137	PTR	182.239.87.137.hk.chinamobile.com
182.239.87.209	PTR	182.239.87.209.hk.chinamobile.com
182.239.87.214	PTR	182.239.87.214.hk.chinamobile.com