Robtex

Up: 219.87.72.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 219.87.72.0/25
Down right: 219.87.72.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
219.87.72.1	A+PTR	219-87-72-1.static.tfn.net.tw
219.87.72.1	A	dns.geniusnet.com
219.87.72.1	A	dns.geniusnet.com.tw
219.87.72.2	A+PTR	219-87-72-2.static.tfn.net.tw
219.87.72.2	A	dns2.kyecom.com
219.87.72.2	A	dns2.geniusnet.com.tw
219.87.72.12	PTR	219-87-72-12.static.tfn.net.tw
219.87.72.12	A	ms.agamazone.com
219.87.72.12	A	ms.kyecom.com
219.87.72.14	A+PTR	219-87-72-14.static.tfn.net.tw
219.87.72.14	A	ms.agamazone.com
219.87.72.14	A	ms.kyecom.com
219.87.72.20	PTR	219-87-72-20.static.tfn.net.tw
219.87.72.20	A	tphcs.geniusnet.com
219.87.72.22	A	tphcs2.geniusnet.com
219.87.72.22	A	219-87-72-22.static.tfn.net.tw
219.87.72.38	A+PTR	219-87-72-38.static.tfn.net.tw
219.87.72.101	PTR	219-87-72-101.static.tfn.net.tw
219.87.72.101	A	genius-dc1.geniusnet.com
219.87.72.127	PTR	219-87-72-127.static.tfn.net.tw
219.87.72.128	PTR	219-87-72-128.static.tfn.net.tw
219.87.72.151	PTR	spam1.geniusnet.com.tw
219.87.72.151	A	ms.geniusnet.com
219.87.72.151	A	219-87-72-151.static.tfn.net.tw
219.87.72.185	A+PTR	219-87-72-185.static.tfn.net.tw
219.87.72.197	A+PTR	219-87-72-197.static.tfn.net.tw
219.87.72.197	A	ms.geniusnet.com.tw
219.87.72.197	A	spam1.geniusnet.com.tw
219.87.72.202	A	www.geniusnet.com.tr
219.87.72.208	PTR	219-87-72-208.static.tfn.net.tw
219.87.72.208	A	geniusnet.com
219.87.72.208	A	www.gx-gaming.com