Robtex

Up: 12.36.216.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 12.36.217.0/25
Down right: 12.36.217.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
12.36.217.4	PTR	dmzsw2.dtn.com
12.36.217.13	A	ftp.finwin.com
12.36.217.16	PTR	www.interquote.com
12.36.217.17	PTR	www.stewonthis.com
12.36.217.17	A	mobilequote.com
12.36.217.18	PTR	www.dtnfs.com
12.36.217.18	A	dtnmarketaccess.net
12.36.217.18	A	dtnmarketaccess.com
12.36.217.21	A	forums.finwin.com
12.36.217.23	PTR	www.finwin.com
12.36.217.24	PTR	www.btu.net
12.36.217.25	A	mail.dtn.com
12.36.217.26	A+PTR	m3sat.finwin.com
12.36.217.27	A	m3ticker.finwin.com
12.36.217.28	A	prefimi.finwin.com
12.36.217.29	PTR	www.finwin.com
12.36.217.29	A	rtquote.finwin.com
12.36.217.29	A	finwin.net
12.36.217.32	PTR	agnews.dtn.com
12.36.217.41	A+PTR	fimi3.dtnergy.com
12.36.217.45	PTR	energmail2.dtnergy.com.217.36.12.in-addr.arpa
12.36.217.81	PTR	dev.aghost.net
12.36.217.89	A	traylortrucking.com
12.36.217.89	A	servicoinc.com
12.36.217.89	A	cromwellag.com
12.36.217.90	A	agquote6.dtn.com
12.36.217.91	A	agquote7.dtn.com
12.36.217.99	A	agquote4.dtn.com
12.36.217.100	A	agquote5.dtn.com
12.36.217.110	A	agnews1.dtn.com
12.36.217.111	A+PTR	agnews2.dtn.com
12.36.217.112	A	admin5.aghost.net
12.36.217.113	A	admin6.aghost.net
12.36.217.114	A	secure5.dtn.com
12.36.217.115	A+PTR	secure6.dtn.com
12.36.217.121	PTR	mail2.dtn.com