Robtex

Up: 208.64.152.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 208.64.153.0/25
Down right: 208.64.153.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.64.153.42	A+PTR	zimbra.broadaspect.net
208.64.153.86	A	remote.dohusa.org
208.64.153.86	A	remote.puertadesperanza.com
208.64.153.86	A	mail.dohusa.org
208.64.153.106	PTR	mail.cfcwired.org
208.64.153.106	A+PTR	staff.cfcwired.org
208.64.153.106	A+PTR	mail.cfellowshipc.org
208.64.153.227	A	mail.aglobalconstruction.com
208.64.153.251	A	mail.iicfiremark.com