Robtex

Up: 64.245.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 64.245.48.0/22
Down right: 64.245.52.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.245.48.18	A	www.nfpsi.com
64.245.48.18	A	nfpsi.com
64.245.48.37	A	weblink.instantsoftware.com
64.245.48.45	A	cas-origin.homeaway.com
64.245.48.45	A	cas.homeaway.com
64.245.49.58	PTR	cage07.singleentry.com
64.245.49.124	A	cas.planview.com
64.245.49.126	PTR	cas.planview.com
64.245.50.210	A	wwademo.com
64.245.50.210	A	wirelessworkadvisor.com
64.245.50.218	A	leitafamily.com
64.245.50.245	PTR	sabbu.com
64.245.52.1	PTR	global-dc.homeawaycorp.com
64.245.52.2	A	global-hq.homeawaycorp.com
64.245.52.10	A	v12csr.instantsoftware.com
64.245.52.10	A	mail1.homeawaycorp.com
64.245.52.33	A	www.aluguetemporada.com.br
64.245.52.37	A	v12rqi.instantsoftware.com
64.245.52.37	A	v12.instantsoftware.com
64.245.52.40	A	d.hawawu.com
64.245.53.77	A	infrahealthinc.com
64.245.53.134	A	www.pennsylvanialife.com
64.245.53.139	A	uafcinfopdp.com
64.245.53.151	A+PTR	mx3.uafc.com
64.245.53.151	A	mx3.apshealthcare.com
64.245.53.151	A	mx3.hhsi.com
64.245.53.152	A	mx4.uafc.com
64.245.53.160	A	smtp.hhsi.com
64.245.53.161	A	voltage-pp-0000.hhsi.com
64.245.55.103	A	usreportfarm01.pvcloud.com
64.245.55.105	A	jira.planview.com
64.245.55.193	PTR	cctlds.homeaway.com
64.245.55.193	A	homeaway.hu
64.245.55.193	A	homeaway.ie
64.245.55.195	PTR	www.fewo-direkt.de
64.245.55.202	A	www.homeaway.pt
64.245.55.203	A	www.homeaway.se
64.245.55.205	A	www.homeaway.at
64.245.55.211	A	www.rezovation.com
64.245.55.212	A	www.homelidays.com
64.245.55.214	A	www.homelidays.es
64.245.55.215	A	myrental.homeaway.com
64.245.55.220	A	secure.ownersdirect.co.uk
64.245.55.221	A	www-origin.ownersdirect.co.uk
64.245.55.227	A	cms.homeaway.com
64.245.55.227	A	cms-origin.homeaway.com