Robtex

Up: 64.140.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.140.16.0/21
Down right: 64.140.24.0/21

IP	Type	Hostname
64.140.16.99	PTR	www.plankey.com
64.140.16.100	PTR	www.xlplans.com
64.140.16.135	PTR	64-140-16-135-digital.icg.net
64.140.17.80	PTR	mail.indexc.com
64.140.17.83	A	mail.digcohelpdesk.com
64.140.17.84	A	mail.indexc.com
64.140.18.18	PTR	bpiohio.com
64.140.18.33	PTR	percipia.com
64.140.18.34	PTR	percipia.net
64.140.18.36	PTR	mail.percipia.com
64.140.18.189	A	lsq-3-2-0-50.edge1.cleveland1.level3.net
64.140.18.196	PTR	mgr.optimumcompanies.com
64.140.19.4	PTR	mail.cons-inc.com
64.140.19.133	PTR	ottcom.com
64.140.19.166	A+PTR	mail.olysteel.com
64.140.20.51	PTR	64-140-20-51.xplorations.net
64.140.21.2	A+PTR	fw01.wkyc.com
64.140.21.7	A	wkyc-lclnscvi.wkyc.com
64.140.24.75	A	mail.treadstone.com
64.140.24.80	A	ns2.remarketingsolution.com
64.140.24.188	A	mail.bobbycox.com
64.140.24.211	A	mail.vantagebenefits.com
64.140.26.82	A	vpn.osteomedcorp.com
64.140.26.84	A	intranet.osteomedcorp.com
64.140.26.84	A	blog.osteomed.com
64.140.26.85	A	*.osteomed.com
64.140.26.230	A+PTR	mailfilter.wcao.net
64.140.26.249	A	server1.wcao.net
64.140.27.52	A	mail.moneybox.net
64.140.27.98	A	safari.southlakecarroll.edu
64.140.27.99	A	destiny.southlakecarroll.edu
64.140.27.100	A	ns1.southlakecarroll.edu
64.140.27.101	A	ns2.southlakecarroll.edu
64.140.27.116	A	www.lsmech.com
64.140.27.123	A	proweb.southlakecarroll.edu
64.140.28.80	A	mail.encorewire.com
64.140.28.81	A	mail1.encorewire.com
64.140.28.100	A	mail3.encorewire.com
64.140.28.101	A	mail4.encorewire.com
64.140.28.213	A	mail.encorewire.com
64.140.29.50	A	mail.dallaseyecare.com
64.140.29.98	A	acavici.com
64.140.29.98	A	acafmserver.com
64.140.29.119	A	tssvici.com
64.140.30.26	A	remote.ponyprinting.com
64.140.30.165	A	ns2.southernnetworks.com
64.140.30.168	A	ns3.southernnetworks.com
64.140.30.173	A	mail2.getsouthern.com
64.140.30.173	A	mail5.getsouthern.com
64.140.30.203	A	chargerllc.com