Robtex

Up: 64.235.248.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.235.249.0/25
Down right: 64.235.249.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.235.249.3	PTR	ns1.quadranet.com
64.235.249.4	PTR	ns2.quadranet.com
64.235.249.83	PTR	mail.canicall.com
64.235.249.116	A	mail.sabot.net
64.235.249.116	A	mail.blackbeltmag.com
64.235.249.116	A	mail.vegetariantimes.com
64.235.249.117	A	mail2.yogajournal.com
64.235.249.117	A	mail2.thelogandtimberhomeshow.com
64.235.249.121	A	mail.timberframehomes.com
64.235.249.121	A	mail.homebuyerpubs.com
64.235.249.121	A	mail.loghomeliving.com
64.235.249.125	A	mail1.thelogandtimberhomeshow.com
64.235.249.226	A	ns6.wide-link.com
64.235.249.226	A	ns4.wide-link.com
64.235.249.226	A	ns7.wide-link.com
64.235.249.228	A	ns8.wide-link.com
64.235.249.247	PTR	unassigned.quadranet.com
64.235.249.248	PTR	unassigned.quadranet.com
64.235.249.251	PTR	unassigned.quadranet.com
64.235.249.252	PTR	unassigned.quadranet.com