Robtex

Up: 64.224.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.224.12.0/23
Down right: 64.224.14.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.224.12.15	PTR	swaggerkings.com
64.224.12.23	PTR	vacubrush.com
64.224.12.31	PTR	karagiozis.gr
64.224.12.31	PTR	www.karagiozismuseum.gr
64.224.12.34	PTR	aaed.com
64.224.12.42	PTR	boatnh.com
64.224.12.42	PTR	hopperconsulting.com
64.224.12.42	PTR	boatnh.net
64.224.12.66	PTR	yourthoughts.org
64.224.12.77	PTR	elmhurstchurch.org
64.224.12.82	PTR	avtkinc.com
64.224.12.93	PTR	3000a.com
64.224.12.93	PTR	skydivealbany.com
64.224.12.93	PTR	skydiveathens.com
64.224.12.95	PTR	reisert.com
64.224.12.99	PTR	foleyrv.com
64.224.12.102	PTR	hampersville.com
64.224.12.110	PTR	petlove.com
64.224.12.110	PTR	petlove.net
64.224.12.113	PTR	caseytree.org
64.224.12.113	PTR	caseytrees.org
64.224.12.119	PTR	pms-us.com
64.224.12.126	A	tanddmachine.net
64.224.12.136	PTR	12gates.net
64.224.12.138	PTR	1bbweb.com
64.224.12.138	PTR	inn-a-bnb.com
64.224.12.143	PTR	sun-sat.com
64.224.12.152	PTR	shamstrade.com
64.224.12.174	PTR	infinitisecurity.com
64.224.12.174	PTR	infinitysecurity.com
64.224.12.175	PTR	baricosmetics.com
64.224.12.198	PTR	wirelessystems.com
64.224.12.200	PTR	4i2i.com
64.224.12.200	PTR	www.4i2i.com
64.224.12.204	PTR	ecam.net
64.224.12.205	PTR	goldenwindows.com
64.224.12.208	PTR	johnburgessdesign.com
64.224.12.236	PTR	absoluteadv.com
64.224.12.241	PTR	acenh.com
64.224.12.252	PTR	adney.com
64.224.12.254	PTR	adsdetection.com
64.224.13.222	A	jamesmoody.4biz.net
64.224.14.61	PTR	afm80.org
64.224.14.64	A	chartwellinvestmentpartners.net
64.224.15.1	PTR	eti-us.com
64.224.15.9	PTR	evaptech.com
64.224.15.11	PTR	ewcapital.com
64.224.15.12	PTR	ewingsrv.com
64.224.15.21	PTR	exmortis.com
64.224.15.24	PTR	extenda-swim.com
64.224.15.35	PTR	faithchristianctr.org
64.224.15.42	PTR	fantaciworks.com
64.224.15.43	PTR	fantasyfavors.com
64.224.15.48	PTR	fastrackindia.com
64.224.15.49	PTR	fbcdecatur.org
64.224.15.56	PTR	feedbackmanager.com
64.224.15.57	PTR	femalereign.com
64.224.15.58	A	thetoolbin.com
64.224.15.59	PTR	feralboy.com
64.224.15.66	PTR	fich.com
64.224.15.70	PTR	meteorite-lab.com
64.224.15.70	PTR	meteoritelab.com
64.224.15.78	PTR	candlesanddesign.com
64.224.15.79	PTR	cpageorgia.com
64.224.15.82	PTR	2downfront.com
64.224.15.84	PTR	pm1d.com
64.224.15.94	PTR	skydiveamericapb.com
64.224.15.108	PTR	lancesoft.com
64.224.15.120	PTR	joebigsley.com
64.224.15.128	PTR	5th-house.com
64.224.15.179	PTR	trussec.com
64.224.15.192	PTR	ipfac.org