Robtex

Up: 64.20.56.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.20.57.0/25
Down right: 64.20.57.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.20.57.130	PTR	chuchko1.reserver.ru
64.20.57.130	A	dialpronto.com
64.20.57.130	A	www.eteenbeen.com
64.20.57.135	PTR	104st.jp
64.20.57.136	PTR	104st.jp
64.20.57.138	PTR
64.20.57.138	A	spocsys.net
64.20.57.138	A	mail.adisaratours.com
64.20.57.139	PTR	blogs2.tpynak.com
64.20.57.140	PTR	blogs2.tpynak.com
64.20.57.140	A	mail.bizzynote.com
64.20.57.140	A	bizzynote.com
64.20.57.141	A	ns1.thesoundofprogression.com
64.20.57.141	A	ns2.furniturebuyonline.com
64.20.57.141	A	www.furniturebuyonline.com
64.20.57.146	PTR	alpha.mxreport.com
64.20.57.146	A	beach.traxel.com
64.20.57.146	A	proxy01.traxel.com
64.20.57.151	PTR	104st.jp
64.20.57.152	PTR	104st.jp
64.20.57.153	PTR	104st.jp
64.20.57.156	PTR	104st.jp
64.20.57.157	PTR	104st.jp
64.20.57.158	PTR	104st.jp
64.20.57.162	PTR	all.sitemanserver.com
64.20.57.162	A	nba.az
64.20.57.162	A	3dprint.az
64.20.57.172	A	upstatescfun.com
64.20.57.172	A	agimat-indicator.com
64.20.57.173	PTR	todojuicio.cl
64.20.57.173	A	mitchmaki.com
64.20.57.173	A	facecorestudios.com
64.20.57.178	A	metatron.webfootprint.net
64.20.57.179	PTR	mx.marketingfastnews.com
64.20.57.179	A	mx.supercheapemail.net
64.20.57.180	PTR	mx.snackmailing.com
64.20.57.180	A	mx.supercheapemail.net
64.20.57.183	A+PTR	mx.digitalglobalmarketing.com
64.20.57.184	A	mx.5gspeedservice.com
64.20.57.185	A+PTR	mx.tips-pvalle.com
64.20.57.185	A	tips-pvalle.com
64.20.57.185	A	1.tips-pvalle.com
64.20.57.186	A+PTR	mediaonedubai.com
64.20.57.186	A	mx.digitalglobalmarketing.com
64.20.57.186	A	dsys318.server-1.biz
64.20.57.187	A+PTR	panel.mediaonedubai.com
64.20.57.187	A	mx.5gspeedservice.com
64.20.57.189	PTR	adn360-00.com
64.20.57.189	A	1.adn360-00.com
64.20.57.189	A	2.adn360-00.com
64.20.57.190	A+PTR	adn360-00.com
64.20.57.194	PTR	cp08.buyhttp.com
64.20.57.194	A	angarai-intl.com
64.20.57.194	A	mail.landfinancegroup.com
64.20.57.195	PTR	ns2.buyhttp.com
64.20.57.195	A	ns2.serr.biz
64.20.57.195	A	ns2.anabatix.com
64.20.57.196	A	mail.landfinancegroup.com
64.20.57.201	A	aea.asn.au
64.20.57.206	PTR	vps211062.trouble-free.net
64.20.57.206	A	www.mdd.sa
64.20.57.223	A+PTR	mx1.moyel.com.mx
64.20.57.235	A	diamonds-dallas.com
64.20.57.240	PTR	vps141974.trouble-free.net
64.20.57.240	A	dadtrading.com
64.20.57.240	A	mail.filtecks.com
64.20.57.247	A	diamonds-san-francisco.com