Robtex

Up: 68.106.64.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 68.106.64.0/25
Down right: 68.106.64.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
68.106.64.15	PTR	mta0015cefbd634.mm.oc.oc.cox.net
68.106.64.36	PTR	mail.pbxcentral.com
68.106.64.36	A	kbfax.net
68.106.64.36	A	mail.pbxportal.com
68.106.64.149	A	kbxweb.com
68.106.64.149	A	ww2.pbxcentral.com
68.106.64.149	A	pbxc.com