Robtex

Up: 203.198.150.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.198.150.0/25
Down right: 203.198.150.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.198.150.1	A+PTR	001.150.198.203.static.netvigator.com
203.198.150.2	A+PTR	002.150.198.203.static.netvigator.com
203.198.150.3	A+PTR	003.150.198.203.static.netvigator.com
203.198.150.4	A+PTR	004.150.198.203.static.netvigator.com
203.198.150.5	A+PTR	005.150.198.203.static.netvigator.com
203.198.150.11	A+PTR	011.150.198.203.static.netvigator.com
203.198.150.12	A+PTR	012.150.198.203.static.netvigator.com
203.198.150.13	A+PTR	013.150.198.203.static.netvigator.com
203.198.150.21	PTR	suyinconnector.com
203.198.150.50	A	aworklan005050.netvigator.com
203.198.150.56	A+PTR	mail.yufat.com
203.198.150.56	A	yufat.com
203.198.150.61	A	mail.ifpc.hk
203.198.150.86	PTR	icg.asia
203.198.150.86	A	remote.icgasia.com
203.198.150.86	A	icgasia.com
203.198.150.95	A+PTR	095.150.198.203.static.netvigator.com
203.198.150.95	A	aworklan005095.netvigator.com
203.198.150.95	A	pmshk.com.hk
203.198.150.107	PTR	107.150.198.203.static.netvigator.com
203.198.150.107	A	hardwood-hk.com
203.198.150.107	A	hksensor.com
203.198.150.127	PTR	127.150.198.203.static.netvigator.com
203.198.150.127	A	mail.hk.t-dimension.com
203.198.150.130	A	mail.crownunited.com
203.198.150.130	A	crownunited.com
203.198.150.156	A	go4eng.com
203.198.150.188	PTR	mail.winskeen.com
203.198.150.194	A	aworklan005194.netvigator.com
203.198.150.202	A+PTR	mail.easeind.com
203.198.150.202	A+PTR	mail.texcolorent.com
203.198.150.202	A	xn--1ctq6yvzh3z0b.com
203.198.150.220	A	mid-chain.com.hk
203.198.150.220	A	mail3.mid-chain.com
203.198.150.226	A	aworklan005226.netvigator.com