Robtex

Up: 64.72.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.72.96.0/21
Down right: 64.72.104.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.72.96.2	PTR	smtp2.careersearchnetwork.com
64.72.97.48	A+PTR	ip-64-72-97-48.lasvegas.net
64.72.97.60	A	ip-64-72-97-60.lasvegas.net
64.72.97.94	A	ip-64-72-97-94.lasvegas.net
64.72.97.111	A	ip-64-72-97-111.lasvegas.net
64.72.97.121	A	ip-64-72-97-121.lasvegas.net
64.72.97.136	A	ip-64-72-97-136.lasvegas.net
64.72.97.144	A+PTR	ip-64-72-97-144.lasvegas.net
64.72.97.154	A	ip-64-72-97-154.lasvegas.net
64.72.97.165	A	ip-64-72-97-165.lasvegas.net
64.72.97.187	A	ip-64-72-97-187.lasvegas.net
64.72.97.189	A	ip-64-72-97-189.lasvegas.net
64.72.97.201	A	ip-64-72-97-201.lasvegas.net
64.72.97.208	A+PTR	ip-64-72-97-208.lasvegas.net
64.72.97.220	A	ip-64-72-97-220.lasvegas.net
64.72.97.238	A	ip-64-72-97-238.lasvegas.net
64.72.98.20	A	itgeekhelp.com
64.72.98.21	A	lvit.consulting
64.72.98.40	A	gear.com
64.72.98.40	A	www.gear.com
64.72.98.51	A	cheers2chocolate.net
64.72.98.51	A	cheers2chocolate.com
64.72.98.58	A	lvucc.org
64.72.98.80	A	nateproject.com
64.72.98.80	A	www.mhbsinc.com
64.72.98.80	A	caseincloud.com
64.72.99.50	PTR	mail.ditronics.com
64.72.99.81	A	ip-64-72-99-81.lasvegas.net
64.72.99.130	A	mailtest.centralrecoverylv.com
64.72.99.133	A	mx2.recoveryproperties.com
64.72.99.133	A	ip-64-72-99-133.lasvegas.net
64.72.99.133	A	mx2.8920players.com
64.72.99.171	A	monarchitects.com
64.72.99.171	A	rpminterface.us
64.72.99.171	A	rpminterface.net
64.72.99.211	A+PTR	ip-64-72-99-211.lasvegas.net
64.72.100.1	A+PTR	ip-64-72-100-1.lasvegas.net
64.72.100.14	A	ip-64-72-100-14.lasvegas.net
64.72.100.18	A+PTR	ip-64-72-100-18.lasvegas.net
64.72.100.19	A+PTR	ip-64-72-100-19.lasvegas.net
64.72.100.26	A	mx4.bonanzabev.com
64.72.100.32	A+PTR	ip-64-72-100-32.lasvegas.net
64.72.100.34	PTR	ip-64-72-100-34.lasvegas.net
64.72.100.34	A	coachmenow.com
64.72.100.34	A	annemarielerch.com
64.72.100.50	PTR	mail.ditronics.com
64.72.100.52	A	ip-64-72-100-52.lasvegas.net
64.72.100.54	A	ip-64-72-100-54.lasvegas.net
64.72.100.55	A	ip-64-72-100-55.lasvegas.net
64.72.100.63	A	ip-64-72-100-63.lasvegas.net
64.72.100.65	A+PTR	ip-64-72-100-65.lasvegas.net
64.72.100.80	A+PTR	ip-64-72-100-80.lasvegas.net
64.72.100.84	A	ip-64-72-100-84.lasvegas.net
64.72.100.86	A	bossaenterprises.com
64.72.100.86	A	mail.klasmanagement.com
64.72.100.104	A	ip-64-72-100-104.lasvegas.net
64.72.100.107	A	ip-64-72-100-107.lasvegas.net
64.72.100.108	A	ip-64-72-100-108.lasvegas.net
64.72.100.109	A	ip-64-72-100-109.lasvegas.net
64.72.100.112	A+PTR	ip-64-72-100-112.lasvegas.net
64.72.100.115	A+PTR	ip-64-72-100-115.lasvegas.net
64.72.100.123	A	guru2.kcfields.com
64.72.100.123	A	kcfields.com
64.72.100.132	A	ip-64-72-100-132.lasvegas.net
64.72.100.138	A	ip-64-72-100-138.lasvegas.net
64.72.100.139	A	ip-64-72-100-139.lasvegas.net
64.72.100.140	A	ip-64-72-100-140.lasvegas.net
64.72.100.151	A	ip-64-72-100-151.lasvegas.net
64.72.100.162	A	mail.lewisconsultingllc.net
64.72.100.164	A	ip-64-72-100-164.lasvegas.net
64.72.100.166	A	ip-64-72-100-166.lasvegas.net
64.72.100.177	A+PTR	ip-64-72-100-177.lasvegas.net
64.72.100.178	A+PTR	ip-64-72-100-178.lasvegas.net
64.72.100.184	A	ip-64-72-100-184.lasvegas.net
64.72.100.188	A	ip-64-72-100-188.lasvegas.net
64.72.100.201	A	ip-64-72-100-201.lasvegas.net
64.72.100.204	A	ip-64-72-100-204.lasvegas.net
64.72.100.215	A	ip-64-72-100-215.lasvegas.net
64.72.100.217	A	ip-64-72-100-217.lasvegas.net
64.72.100.220	A	ip-64-72-100-220.lasvegas.net
64.72.100.224	A+PTR	ip-64-72-100-224.lasvegas.net
64.72.100.226	A+PTR	ip-64-72-100-226.lasvegas.net
64.72.100.228	A	ip-64-72-100-228.lasvegas.net
64.72.100.231	A	ip-64-72-100-231.lasvegas.net
64.72.100.241	A+PTR	ip-64-72-100-241.lasvegas.net
64.72.100.248	A	ip-64-72-100-248.lasvegas.net
64.72.101.2	A	ip-64-72-101-2.lasvegas.net
64.72.101.3	A	athometraining.frontsight.com
64.72.101.4	A	frontsightstaff.net
64.72.101.6	A	ip-64-72-101-6.lasvegas.net
64.72.101.18	A+PTR	ip-64-72-101-18.lasvegas.net
64.72.101.20	A	ip-64-72-101-20.lasvegas.net
64.72.101.36	A	melaninmusic.com
64.72.101.37	A	1x1513.com
64.72.101.37	A	ip-64-72-101-37.lasvegas.net
64.72.101.37	A	tinadarby.com
64.72.101.66	A+PTR	ip-64-72-101-66.lasvegas.net
64.72.101.66	A	roseman.edu
64.72.101.122	A	ip-64-72-101-122.lasvegas.net
64.72.101.134	A	ip-64-72-101-134.lasvegas.net
64.72.101.134	A	root.4i4.net
64.72.101.135	A	ip-64-72-101-135.lasvegas.net
64.72.101.139	A	ip-64-72-101-139.lasvegas.net
64.72.101.145	PTR	ip-64-72-101-145.lasvegas.net
64.72.101.145	A	netlatitude.com
64.72.101.145	A	kapaluaoceanfront.com
64.72.101.149	A	kapaluaoceanfront.com
64.72.101.149	A	ns3.netlatitude.com
64.72.101.162	A+PTR	smtp1.jobdiagnosis.com
64.72.101.162	A	ip-64-72-101-162.lasvegas.net
64.72.101.164	A	smtp3.jobdiagnosis.com
64.72.101.208	PTR	smtp7.scholarshipview.com
64.72.101.222	A	mailer.employmentalert.com
64.72.101.225	PTR	smtp4.careerquill.com
64.72.101.227	A+PTR	smtp3-3.mailer.employmentalert.com
64.72.101.233	A	smtp3-7.mailer.employmentalert.com
64.72.102.71	PTR	ip-64-72-102-71.lasvegas.net
64.72.102.71	A	*.etwatch.com
64.72.102.71	A	rpa.pahima.com
64.72.102.75	PTR	mail.mav.com
64.72.102.77	PTR	ip-64-72-102-77.lasvegas.net
64.72.102.81	PTR	ip-64-72-102-81.lasvegas.net
64.72.102.81	A	ns1.rnav.com
64.72.102.81	A	ns3.rnav.com
64.72.102.82	A+PTR	ip-64-72-102-82.lasvegas.net
64.72.102.82	A	ns2.xtzp.com
64.72.102.89	A	*.etwatch.com
64.72.102.89	A	*.a2z9.com
64.72.102.195	A+PTR	mail.terribleherbst.com
64.72.102.199	A+PTR	dns3.terribleherbst.com
64.72.102.200	A+PTR	dns4.terribleherbst.com
64.72.103.18	A	ip-64-72-103-18.lasvegas.net
64.72.103.20	A	landscapedesignsoftware3d.com
64.72.103.20	A	3dpooldesignsoftware.com
64.72.103.20	A	structurestudios.com
64.72.103.36	A	mail.5starmtg.com
64.72.103.63	A	ip-64-72-103-63.lasvegas.net
64.72.103.79	A	ip-64-72-103-79.lasvegas.net
64.72.103.84	A	mail.otlamp.com
64.72.103.84	A	mail.mvllc.net
64.72.103.84	A	mail.manicreader.com
64.72.103.125	A	ns1.pcrepaircity.com
64.72.103.125	A	mail.aaaittech.net
64.72.103.125	A	ns2.pcrepaircity.com
64.72.103.131	A+PTR	ip-64-72-103-131.lasvegas.net
64.72.103.131	A	exch.thegrind.mobi
64.72.103.131	A	mail.effedtillapril.com
64.72.103.197	A	ip-64-72-103-197.lasvegas.net
64.72.103.244	A	ip-64-72-103-244.lasvegas.net
64.72.104.6	A	ip-64-72-104-6.lasvegas.net
64.72.104.13	A	ip-64-72-104-13.lasvegas.net
64.72.104.17	A+PTR	ip-64-72-104-17.lasvegas.net
64.72.104.19	A+PTR	ip-64-72-104-19.lasvegas.net
64.72.104.34	A	ip-64-72-104-34.lasvegas.net
64.72.104.41	A	ip-64-72-104-41.lasvegas.net
64.72.104.46	A	ip-64-72-104-46.lasvegas.net
64.72.104.69	A	ip-64-72-104-69.lasvegas.net
64.72.104.83	A+PTR	ip-64-72-104-83.lasvegas.net
64.72.104.86	A	ip-64-72-104-86.lasvegas.net
64.72.104.95	A	ip-64-72-104-95.lasvegas.net
64.72.104.123	A	mail.vtconstruction.org
64.72.104.130	A+PTR	ip-64-72-104-130.lasvegas.net
64.72.104.130	A	mail.ycstrans.com
64.72.104.178	A	synergylabs.net
64.72.104.182	A+PTR	ip-64-72-104-182.lasvegas.net
64.72.104.187	A+PTR	ip-64-72-104-187.lasvegas.net
64.72.104.187	A	contrinv.com
64.72.104.190	A	contrinv.com
64.72.104.250	A+PTR	ip-64-72-104-250.lasvegas.net
64.72.105.3	A+PTR	ip-64-72-105-3.lasvegas.net
64.72.105.3	A	jettgamingapp.com
64.72.105.35	A	mail.wetch.com
64.72.105.35	A	mail.theskunkworks.org
64.72.105.36	A+PTR	ip-64-72-105-36.lasvegas.net
64.72.105.36	A	arghbar.com
64.72.105.50	A+PTR	ip-64-72-105-50.lasvegas.net
64.72.105.130	PTR	ip-64-72-105-130.lasvegas.net
64.72.105.130	A	mail.thebasementclothes.com
64.72.105.130	A	mail.lightautomation.com
64.72.105.131	PTR	ip-64-72-105-131.lasvegas.net
64.72.105.161	A+PTR	ip-64-72-105-161.lasvegas.net
64.72.106.234	A	ip-64-72-106-234.lasvegas.net
64.72.107.5	PTR	smtp5.frulewz.com
64.72.107.5	A	ex-pr-int.com
64.72.107.5	A	ellecrow.com
64.72.107.50	A	pcjet.net
64.72.107.66	PTR	smtp66.frulewz.com
64.72.107.66	A	trktrkpix.com
64.72.107.66	A	mail.zeromargin.com
64.72.107.67	PTR	smtp67.frulewz.com
64.72.107.67	A	leadsquery.com
64.72.107.67	A	ns1.yournamedotcom.com
64.72.107.122	A	img-interhuehue.com
64.72.107.122	A	mail-02.threenames.com
64.72.107.122	A	mail-02.bccboston.com
64.72.108.25	A	ip-64-72-108-25.lasvegas.net
64.72.108.38	A	ip-64-72-108-38.lasvegas.net
64.72.108.41	A	ip-64-72-108-41.lasvegas.net
64.72.108.109	A	ip-64-72-108-109.lasvegas.net
64.72.108.179	A+PTR	ip-64-72-108-179.lasvegas.net
64.72.108.182	A	ip-64-72-108-182.lasvegas.net
64.72.108.194	A+PTR	ip-64-72-108-194.lasvegas.net
64.72.109.1	PTR	rtr338.lasvegas.net