Robtex

Up: 64.43.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 64.43.192.0/19
Down right: 64.43.224.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.43.228.18	A	docs.phs.org
64.43.228.20	A	ctx.phs.org
64.43.228.25	A	ds.phs.org
64.43.228.27	A	lincoln-county-medical-center.phs.org
64.43.232.10	A+PTR	fw.usg.com
64.43.232.10	A+PTR	qa-web-001.usg.com
64.43.232.111	A+PTR	ns1.usg.com
64.43.232.112	A+PTR	ns2.usg.com
64.43.232.113	A	ns4.usg.com
64.43.232.114	A	ns5.usg.com
64.43.232.136	PTR	usgsubfloor.com
64.43.232.136	PTR	usgdesignstudio.com
64.43.232.136	PTR	api.usgdesignstudio.com
64.43.232.206	A+PTR	autodiscover.usg.com
64.43.232.206	A+PTR	owa.usg.com
64.43.232.206	PTR	autodiscover.usg.com.mx
64.43.233.21	PTR	mail02.usg.com
64.43.233.25	A	mail01.usg.com
64.43.233.25	A	prdc-smtp-02.usg.com
64.43.234.111	A	ns3.usg.com
64.43.234.113	A	ns6.usg.com
64.43.234.149	A	eservicests.usg.com
64.43.234.149	A	eservicessb.usg.com
64.43.234.149	A	eservicestr.usg.com
64.43.235.25	A+PTR	mail05.usg.com
64.43.235.25	A+PTR	npdc-smtp-01.usg.com
64.43.240.70	A	tconnect.t-systemsus.com
64.43.240.81	A	serviceportal.t-systemsus.com
64.43.241.135	A	a.ns.dresserinc.com
64.43.241.197	A+PTR	dns-b1.t-systems.com
64.43.242.197	A+PTR	dns-b2.t-systems.com
64.43.243.206	A+PTR	hn-proxy1.t-systems.de
64.43.243.215	A	perftools.t-systemsus.com
64.43.246.14	A	www.oneamericafunds.com
64.43.246.14	A	www.schwarzpartners401k.com
64.43.246.14	A	www.ccci401k.com
64.43.246.16	A	portal.alexion.com
64.43.246.64	A	www.pmlife.com
64.43.246.64	A	pmlife.com
64.43.246.67	A	haobits.com
64.43.246.67	A	oneamericalifeinsurance.com
64.43.247.200	A	sip.milliporesigma.com
64.43.247.203	A	sip.milliporesigma.com
64.43.247.206	A	sip.milliporesigma.com
64.43.247.209	A	sip.milliporesigma.com