Robtex

Up: 203.130.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.130.50.0/25
Down right: 203.130.50.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.130.50.2	PTR	203.130.50.2-bj-cnc
203.130.50.2	A	ns1.cgcdnt.net
203.130.50.2	A	ns1.wsoversea.com
203.130.50.6	PTR	203.130.50.6-bj-cnc
203.130.50.7	PTR	203.130.50.7-bj-cnc
203.130.50.101	PTR	203.130.50.101-bj-cnc
203.130.50.112	PTR	203.130.50.112-bj-cnc
203.130.50.138	PTR	203.130.50.138-bj-cnc
203.130.50.140	PTR	203.130.50.140-bj-cnc
203.130.50.165	PTR	203.130.50.165-bj-cnc
203.130.50.174	PTR	203.130.50.174-bj-cnc
203.130.50.191	PTR	203.130.50.191-bj-cnc
203.130.50.204	PTR	203.130.50.204-bj-cnc
203.130.50.208	PTR	203.130.50.208-bj-cnc
203.130.50.210	PTR	203.130.50.210-bj-cnc
203.130.50.253	PTR	203.130.50.253-bj-cnc