Robtex

Up: 12.156.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 12.156.0.0/22
Down right: 12.156.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
12.156.0.9	PTR	freebie.theplanet.com
12.156.0.28	A	1c.0.9c0c.static.theplanet.com
12.156.0.42	A	2a.0.9c0c.static.theplanet.com
12.156.0.46	A	2e.0.9c0c.static.theplanet.com
12.156.0.72	PTR	48.0.9c0c.static.theplanet.com
12.156.0.79	A	4f.0.9c0c.static.theplanet.com
12.156.0.82	A	52.0.9c0c.static.theplanet.com
12.156.0.92	A	5c.0.9c0c.static.theplanet.com
12.156.0.104	A+PTR	68.0.9c0c.static.theplanet.com
12.156.0.111	A	6f.0.9c0c.static.theplanet.com
12.156.0.120	A+PTR	78.0.9c0c.static.theplanet.com
12.156.0.124	A	7c.0.9c0c.static.theplanet.com
12.156.0.129	A	81.0.9c0c.static.theplanet.com
12.156.0.149	A	taneybaseball.org
12.156.0.150	A	newtonlittleleague.org
12.156.0.209	A	christianhosting.org
12.156.0.209	A	www.christianhosting.org
12.156.0.210	A	d2.0.9c0c.static.theplanet.com
12.156.0.217	PTR	d9.0.9c0c.static.theplanet.com
12.156.0.235	A+PTR	eb.0.9c0c.static.theplanet.com
12.156.0.236	A	ec.0.9c0c.static.theplanet.com
12.156.0.238	A	ee.0.9c0c.static.theplanet.com
12.156.0.243	A+PTR	f3.0.9c0c.static.theplanet.com
12.156.0.245	A	f5.0.9c0c.static.theplanet.com
12.156.1.0	A	0.1.9c0c.static.theplanet.com
12.156.1.3	PTR	3.1.9c0c.static.theplanet.com
12.156.1.18	PTR	12.1.9c0c.static.theplanet.com
12.156.1.19	A	13.1.9c0c.static.theplanet.com
12.156.1.26	PTR	1a.1.9c0c.static.theplanet.com
12.156.1.32	PTR	20.1.9c0c.static.theplanet.com
12.156.1.34	PTR	22.1.9c0c.static.theplanet.com
12.156.1.36	A	24.1.9c0c.static.theplanet.com
12.156.1.40	A	28.1.9c0c.static.theplanet.com
12.156.1.41	PTR	29.1.9c0c.static.theplanet.com
12.156.1.46	A	2e.1.9c0c.static.theplanet.com
12.156.1.48	A	30.1.9c0c.static.theplanet.com
12.156.1.49	A+PTR	31.1.9c0c.static.theplanet.com
12.156.1.52	A	34.1.9c0c.static.theplanet.com
12.156.1.54	A	36.1.9c0c.static.theplanet.com
12.156.1.62	A	3e.1.9c0c.static.theplanet.com
12.156.1.64	A	40.1.9c0c.static.theplanet.com
12.156.1.65	A+PTR	41.1.9c0c.static.theplanet.com
12.156.1.68	A	44.1.9c0c.static.theplanet.com
12.156.1.81	A+PTR	51.1.9c0c.static.theplanet.com
12.156.1.83	PTR	53.1.9c0c.static.theplanet.com
12.156.1.85	A	55.1.9c0c.static.theplanet.com
12.156.1.86	A	56.1.9c0c.static.theplanet.com
12.156.1.88	A	58.1.9c0c.static.theplanet.com
12.156.1.90	PTR	boston-personals.net
12.156.1.93	A	5d.1.9c0c.static.theplanet.com
12.156.1.119	A	77.1.9c0c.static.theplanet.com
12.156.1.135	A	grillnchilln.com
12.156.1.150	A	iosappdev.com
12.156.1.150	A	ios4developer.com
12.156.1.157	A	9d.1.9c0c.static.theplanet.com
12.156.1.159	A	9f.1.9c0c.static.theplanet.com
12.156.1.159	A	planoprobatelawyer.com
12.156.1.163	A	a3.1.9c0c.static.theplanet.com
12.156.1.167	A	stonehillatmuttontown.us
12.156.1.177	A+PTR	b1.1.9c0c.static.theplanet.com
12.156.1.187	PTR	bb.1.9c0c.static.theplanet.com
12.156.1.211	A	d3.1.9c0c.static.theplanet.com
12.156.1.222	A	de.1.9c0c.static.theplanet.com
12.156.1.225	A	e1.1.9c0c.static.theplanet.com
12.156.1.240	A	f0.1.9c0c.static.theplanet.com
12.156.2.0	A+PTR	0.2.9c0c.static.theplanet.com
12.156.2.31	A	1f.2.9c0c.static.theplanet.com
12.156.2.43	PTR	mail.rcgroups.com
12.156.2.48	PTR	liftzone.com
12.156.2.102	A	66.2.9c0c.static.theplanet.com
12.156.2.110	A	6e.2.9c0c.static.theplanet.com
12.156.2.134	A	86.2.9c0c.static.theplanet.com
12.156.2.167	A	mcivorzone.com
12.156.3.0	A+PTR	0.3.9c0c.static.theplanet.com
12.156.3.7	PTR	smtp2.publishingconcepts.com
12.156.3.35	A	www.mba.cal.berkeley.edu
12.156.3.35	A	haasalumni.cal.berkeley.edu
12.156.3.35	A	mba.cal.berkeley.edu
12.156.3.40	A	jschoolalumni.cal.berkeley.edu
12.156.3.41	PTR	fundraising.publishingconcepts.com
12.156.3.41	A	boaltalum.cal.berkeley.edu
12.156.3.43	A	naturealum.cal.berkeley.edu
12.156.3.43	A	www.naturealum.cal.berkeley.edu
12.156.3.48	A	swalumni.cal.berkeley.edu
12.156.3.49	A	alum.cal.berkeley.edu
12.156.3.49	A	www.alum.cal.berkeley.edu
12.156.3.49	A	calalum.org
12.156.3.61	PTR	northeastern.publishingconcepts.com
12.156.3.63	PTR	vanderbilt.publishingconcepts.com
12.156.3.63	A	alumni.vanderbilt.edu
12.156.3.136	PTR	list1.publishingconcepts.com
12.156.3.227	A	mail.gordongrid.com
12.156.3.229	A	gordonmachine.com
12.156.3.230	A	gordon-inc.com
12.156.3.230	A	rwdyinc.com
12.156.4.0	A+PTR	0.4.9c0c.static.theplanet.com
12.156.4.160	A	a0.4.9c0c.static.theplanet.com
12.156.4.188	A	bc.4.9c0c.static.theplanet.com
12.156.4.189	A	bd.4.9c0c.static.theplanet.com
12.156.4.191	A	bf.4.9c0c.static.theplanet.com
12.156.4.208	PTR	mail2.comp-connections.com
12.156.4.225	A	e1.4.9c0c.static.theplanet.com
12.156.4.227	A	e3.4.9c0c.static.theplanet.com
12.156.4.239	A	ef.4.9c0c.static.theplanet.com
12.156.4.246	A	f6.4.9c0c.static.theplanet.com
12.156.4.252	A	fc.4.9c0c.static.theplanet.com
12.156.4.253	A	fd.4.9c0c.static.theplanet.com
12.156.5.56	PTR	dnsrequest.com
12.156.6.0	A+PTR	0.6.9c0c.static.theplanet.com