Robtex

Up: 203.198.136.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.198.138.0/24
Down right: 203.198.139.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.198.138.2	A+PTR	002.138.198.203.static.netvigator.com
203.198.138.3	A+PTR	003.138.198.203.static.netvigator.com
203.198.138.4	A+PTR	004.138.198.203.static.netvigator.com
203.198.138.5	A+PTR	005.138.198.203.static.netvigator.com
203.198.138.11	A+PTR	011.138.198.203.static.netvigator.com
203.198.138.12	A+PTR	012.138.198.203.static.netvigator.com
203.198.138.13	A+PTR	013.138.198.203.static.netvigator.com
203.198.138.14	A+PTR	014.138.198.203.static.netvigator.com
203.198.138.20	A	mail.buy88hk.com
203.198.138.20	A	buy88hk.com
203.198.138.22	A+PTR	022.138.198.203.static.netvigator.com
203.198.138.22	A	mail.yt-lippo.com
203.198.138.22	A	yt-lippo.com
203.198.138.23	A	mail.ang-toystar.com.hk
203.198.138.38	A+PTR	038.138.198.203.static.netvigator.com
203.198.138.56	A	056.138.198.203.static.netvigator.com
203.198.138.65	A	pcd070065.netvigator.com
203.198.138.84	A	084.138.198.203.static.netvigator.com
203.198.138.86	A+PTR	086.138.198.203.static.netvigator.com
203.198.138.86	A	bee336.com
203.198.138.86	A	autoyb.com.cn
203.198.138.92	A	irri-net.com
203.198.138.93	A	pcd070093.netvigator.com
203.198.138.99	A+PTR	099.138.198.203.static.netvigator.com
203.198.138.99	A	egdoor.com
203.198.138.99	A	mail.sjk99.cn
203.198.138.100	A	100.138.198.203.static.netvigator.com
203.198.138.120	A	120.138.198.203.static.netvigator.com
203.198.138.126	A	globalconnectapp.com
203.198.138.126	A	smtp.limensystems.org
203.198.138.126	A	pop.limensystems.org
203.198.138.130	A	mail.gogoalsoftware.com
203.198.138.130	A	golf.gogoalsoftware.com
203.198.138.138	PTR	sbs2003.kwongwah.com
203.198.138.142	A	*.kingsbridgefunds.com
203.198.138.142	A	kingsbridgefunds.com
203.198.138.142	A	pccw.kingsbridgefunds.com
203.198.138.156	A+PTR	156.138.198.203.static.netvigator.com
203.198.138.156	A	mail.fgc-plus.com
203.198.138.170	A+PTR	170.138.198.203.static.netvigator.com
203.198.138.170	A	pinpaidg.com
203.198.138.170	A	mail.chpqt.com
203.198.138.173	A	173.138.198.203.static.netvigator.com
203.198.138.176	PTR	176.138.198.203.static.netvigator.com
203.198.138.176	A	hengwangtennis.com
203.198.138.176	A	chinabowlder.cn
203.198.138.182	A	182.138.198.203.static.netvigator.com
203.198.138.194	PTR	194.138.198.203.static.netvigator.com
203.198.138.194	A	mail.xdf-clothing.com
203.198.138.195	PTR	195.138.198.203.static.netvigator.com
203.198.138.195	A	mail.ascentglory.com.hk
203.198.138.195	A	ascentglory.com.hk
203.198.138.206	A	gsupreme-ltd.com
203.198.138.206	A	sgl-ltd.com
203.198.138.206	A	mail.gsupreme-ltd.com
203.198.138.209	A	pcd070209.netvigator.com
203.198.138.211	A	pcd070211.netvigator.com
203.198.138.220	PTR	220.138.198.203.static.netvigator.com
203.198.139.1	A+PTR	001.139.198.203.static.netvigator.com
203.198.139.2	A+PTR	002.139.198.203.static.netvigator.com
203.198.139.3	A+PTR	003.139.198.203.static.netvigator.com
203.198.139.4	A+PTR	004.139.198.203.static.netvigator.com
203.198.139.5	A+PTR	005.139.198.203.static.netvigator.com
203.198.139.11	A+PTR	011.139.198.203.static.netvigator.com
203.198.139.12	A+PTR	012.139.198.203.static.netvigator.com
203.198.139.13	A+PTR	013.139.198.203.static.netvigator.com
203.198.139.14	A+PTR	014.139.198.203.static.netvigator.com
203.198.139.95	A+PTR	095.139.198.203.static.netvigator.com
203.198.139.95	A	mail2.uegl.com.hk
203.198.139.103	PTR	103.139.198.203.static.netvigator.com
203.198.139.103	A	creedontechnologies.com
203.198.139.121	PTR	121.139.198.203.static.netvigator.com
203.198.139.139	A+PTR	139.139.198.203.static.netvigator.com
203.198.139.203	PTR	203.139.198.203.static.netvigator.com
203.198.139.203	A	mail1.aliceandlaw.com.hk
203.198.139.212	A	212.139.198.203.static.netvigator.com