Robtex

Up: 203.198.136.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.198.136.0/24
Down right: 203.198.137.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.198.136.1	A+PTR	001.136.198.203.static.netvigator.com
203.198.136.2	A+PTR	002.136.198.203.static.netvigator.com
203.198.136.3	A+PTR	003.136.198.203.static.netvigator.com
203.198.136.3	A	aworklan013003.netvigator.com
203.198.136.4	A+PTR	004.136.198.203.static.netvigator.com
203.198.136.5	A+PTR	005.136.198.203.static.netvigator.com
203.198.136.8	PTR	008.136.198.203.static.netvigator.com
203.198.136.11	A+PTR	011.136.198.203.static.netvigator.com
203.198.136.12	A+PTR	012.136.198.203.static.netvigator.com
203.198.136.13	A+PTR	013.136.198.203.static.netvigator.com
203.198.136.14	A	mail.enrich.hk
203.198.136.21	A+PTR	021.136.198.203.static.netvigator.com
203.198.136.26	PTR	026.136.198.203.static.netvigator.com
203.198.136.37	A	aworklan013037.netvigator.com
203.198.136.70	A	aworklan013070.netvigator.com
203.198.136.84	PTR	084.136.198.203.static.netvigator.com
203.198.136.84	A	shadloo.com
203.198.136.99	A	aworklan013099.netvigator.com
203.198.136.171	PTR	mhmail.morisonhk.com
203.198.136.188	PTR	mail.kopoint.com.hk
203.198.136.188	A	kopoint.com.hk
203.198.136.204	A+PTR	204.136.198.203.static.netvigator.com
203.198.136.211	A	hansonprogram.com
203.198.136.239	A	ttcash.com
203.198.136.239	A	interlinings.com
203.198.136.239	A	mail.interlinings.com
203.198.136.240	PTR	smtp.waihang.com.hk
203.198.136.242	A+PTR	mail.eskimo.com.hk
203.198.136.242	A	ns3.hkplanet.com
203.198.136.246	A	fungwa.org
203.198.137.1	A+PTR	001.137.198.203.static.netvigator.com
203.198.137.2	A+PTR	002.137.198.203.static.netvigator.com
203.198.137.3	A+PTR	003.137.198.203.static.netvigator.com
203.198.137.4	A+PTR	004.137.198.203.static.netvigator.com
203.198.137.5	A+PTR	005.137.198.203.static.netvigator.com
203.198.137.11	A+PTR	011.137.198.203.static.netvigator.com
203.198.137.12	A+PTR	012.137.198.203.static.netvigator.com
203.198.137.13	A+PTR	013.137.198.203.static.netvigator.com
203.198.137.14	A+PTR	014.137.198.203.static.netvigator.com
203.198.137.51	A	ns1.unipethouse.com
203.198.137.51	A	mail.unipethouse.com
203.198.137.51	A	mail.solidpet.com
203.198.137.80	PTR	mail.hkasa.org.hk
203.198.137.101	A+PTR	101.137.198.203.static.netvigator.com
203.198.137.115	PTR	115.137.198.203.static.netvigator.com