Robtex

Up: 63.216.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 63.216.60.0/23
Down right: 63.216.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
63.216.60.57	PTR	mail.rotam.com
63.216.60.57	PTR	mail.rotamhk.com
63.216.60.57	A	*.olalavi.com
63.216.60.60	PTR	mail1.rotam.com
63.216.60.60	PTR	mail1.rotamhk.com
63.216.60.61	PTR	mail2.rotam.com
63.216.60.61	PTR	mail2.rotamhk.com
63.216.60.210	PTR	63-216-60-210.static.pccwglobal.net
63.216.60.210	A	gns.pccw.com
63.216.63.35	PTR	63-216-63-35.static.pccwglobal.net
63.216.63.35	A	ensupport.zte.com.cn
63.216.63.43	PTR	63-216-63-43.static.pccwglobal.net
63.216.63.43	A	zte.com.fr
63.216.63.43	A	zte-deutschland.de
63.216.63.52	A	63-216-63-52.sdsl.cais.net
63.216.63.58	A	mailgw.fullgoal.com.hk