Robtex

Up: 204.147.200.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.147.204.0/23
Down right: 204.147.206.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.147.204.2	A+PTR	ubs.cjis20.org
204.147.204.3	PTR	cjis20.org
204.147.204.3	A+PTR	cjis.cjis20.org
204.147.204.3	A+PTR	dns1.cjis20.org
204.147.204.62	A+PTR	vpn.cjis20.org
204.147.205.8	A+PTR	samail.sao.cjis20.org
204.147.205.49	A	sao.cjis20.org
204.147.207.33	A	pd.cjis20.org