Robtex

Up: 12.110.172.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 12.110.172.0/25
Down right: 12.110.172.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
12.110.172.10	A	mailserver2.percepta.com
12.110.172.20	A	percepta.biz
12.110.172.20	A	percepta-crm.com
12.110.172.20	A	percepta.de
12.110.172.26	PTR	mailrouter.percepta.com
12.110.172.94	A	mailserver2.hqhelpsite.com
12.110.172.94	A	mailserver1.hqhelpsite.com