Robtex

Up: 204.153.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.153.52.0/23
Down right: 204.153.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.153.52.6	A+PTR	dns1.ldaf.state.la.us
204.153.52.7	A+PTR	ns2.ldaf.state.la.us
204.153.52.7	A	dns2.ldaf.state.la.us
204.153.52.61	A+PTR	brandbook.ldaf.state.la.us
204.153.52.61	PTR	greenlaws.ldaf.state.la.us
204.153.52.61	A+PTR	upload.ldaf.state.la.us
204.153.52.63	A+PTR	hermes.ldaf.state.la.us
204.153.52.63	PTR	mail.ldaf.state.la.us
204.153.52.63	PTR	webmail.ldaf.state.la.us