Robtex

Up: 64.108.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.108.4.0/23
Down right: 64.108.6.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.108.4.45	A+PTR	adsl-64-108-4-45.dsl.dytnoh.ameritech.net
64.108.4.141	A+PTR	adsl-64-108-4-141.dsl.dytnoh.ameritech.net
64.108.5.49	A	catalynux.com
64.108.5.49	A	resthavenmemorialpark.com
64.108.5.49	A	zope.cemeterydata.org
64.108.5.73	PTR	mail.gcchd.org
64.108.5.75	PTR	mail.gcchd.org