Robtex

Up: 219.87.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 219.87.81.0/25
Down right: 219.87.81.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
219.87.81.3	PTR	219-87-81-3.static.tfn.net.tw
219.87.81.3	A	b2b.518fb.com
219.87.81.8	PTR	219-87-81-8.static.tfn.net.tw
219.87.81.8	A	www.518fb.com.tw
219.87.81.8	A	www.518fb.com
219.87.81.12	PTR	219-87-81-12.static.tfn.net.tw
219.87.81.12	A	518.518fb.com
219.87.81.27	PTR	219-87-81-27.static.tfn.net.tw
219.87.81.27	A	ns1.fubon.com.tw
219.87.81.53	PTR	219-87-81-53.static.tfn.net.tw
219.87.81.53	A	www.zigsheng.com
219.87.81.53	A	zigsheng.com
219.87.81.59	A+PTR	219-87-81-59.static.tfn.net.tw
219.87.81.59	A	mail.z3dfilament.com
219.87.81.59	A	z3dfilament.com
219.87.81.61	A+PTR	219-87-81-61.static.tfn.net.tw
219.87.81.61	A	mail.zigsheng.com
219.87.81.66	PTR	219-87-81-66.static.tfn.net.tw
219.87.81.66	A	dns2.shinkong.com.tw
219.87.81.74	A+PTR	mail3.shinkong.com.tw
219.87.81.100	A+PTR	mail.zojirushi.com.tw
219.87.81.100	A	zojirushi.com.tw
219.87.81.127	A+PTR	219-87-81-127.static.tfn.net.tw
219.87.81.128	A+PTR	219-87-81-128.static.tfn.net.tw
219.87.81.130	PTR	mail2.ictgroup.com.tw
219.87.81.133	A+PTR	smtp.ictgroup.com.tw
219.87.81.194	A+PTR	twmx1.olc-group.com
219.87.81.194	A	mail.olc-group.com
219.87.81.194	A	kao.olc-group.com
219.87.81.195	PTR	opl.com.tw
219.87.81.195	A	mfilter.olcgroupltd.com
219.87.81.196	A	ns1.olc.com.hk
219.87.81.198	PTR	olc-group.com
219.87.81.199	PTR	olc-group.com
219.87.81.200	A	eip.olc-group.com
219.87.81.201	PTR	mail.olc-group.com
219.87.81.202	PTR	mail.olc-group.com
219.87.81.208	A	www.salem-logistics.com
219.87.81.209	PTR	219-87-81-209.static.tfn.net.tw
219.87.81.222	A	ns3.aws-at.com
219.87.81.255	PTR	219-87-81-255.static.tfn.net.tw