Robtex

Up: 64.247.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.247.160.0/21
Down right: 64.247.168.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.247.161.243	A+PTR	mail.nodusbank.com
64.247.162.153	A	mail.perezhermanos.com
64.247.163.78	PTR	exch2010.ases.com
64.247.164.106	A	mx1.nazarenoservicesinc.com
64.247.164.146	A	gt-network.com
64.247.164.154	A	mail.amgprlaw.com
64.247.164.227	PTR	mx1.cesarcastillo.com
64.247.164.227	A	mail.cesarcastillo.com
64.247.164.234	A+PTR	fw.cesarcastillo.com
64.247.165.35	PTR	35-165.247.64.in-addr.arpa
64.247.165.35	A	camcpr.com
64.247.165.82	PTR	82-165.247.64.in-addr.arpa
64.247.165.82	A	www.garageeuropa.com
64.247.165.82	A	garageeuropa.com
64.247.165.84	A	mail1.ferrarisanjuan.com
64.247.165.84	A	mail1.hyundaisanjuan.com
64.247.165.85	PTR	mailx.gomezhermanoskennedy.com
64.247.167.146	PTR	mail.speedynetpr.com
64.247.167.250	A	arcabankonline.com
64.247.167.250	A	www.arcabankonline.com
64.247.168.130	PTR	mail.speedynetpr.com
64.247.169.190	A	mail.pelegrina.com
64.247.169.194	PTR	194-168-247-64-static.centennialpr.net
64.247.169.194	A	quinonesfg.com
64.247.169.202	A	mail.supermaxpr.com
64.247.169.227	A+PTR	email.phmhs.com
64.247.169.227	A	exch.phmhs.com
64.247.169.241	A	mail.bbo.net
64.247.169.241	A	mail.bbo.com
64.247.169.243	A+PTR	www.bbobank.com
64.247.169.243	PTR	243-168-247-64-static.centennialpr.net
64.247.169.243	A	www.bboprivatebank.net
64.247.171.10	A	islandstoragepr.com
64.247.171.22	A	mail.econolhv.com
64.247.171.145	A	ieaflkecspo.net
64.247.171.178	A	mail.costaisabela.com
64.247.172.1	PTR	1-172-247-64-static.centennialpr.net
64.247.172.11	A	mail.humacao.gov.pr
64.247.172.134	A	alertabiopharma.com
64.247.172.235	A	ns1.suzukipr.com
64.247.174.5	A+PTR	mail.intershipmail.com
64.247.175.2	PTR	ns1.dnpnetworks.net
64.247.175.4	A+PTR	ns3.dnpnetworks.net
64.247.175.5	PTR	mail.dnpnetworks.net
64.247.175.5	A	mail.areciboverde.com
64.247.175.5	A	mail.egorealty.com
64.247.175.16	A+PTR	mail.dnp-pr.com
64.247.175.16	A	mail.dnp-pr.net
64.247.175.17	A	act-transport.com
64.247.175.17	A	mail.act-transport.com
64.247.175.29	PTR	virtual3.dnpnetworks.net
64.247.175.134	A+PTR	mail.aibonitopr.net
64.247.175.170	A	mail.fabrixs.net
64.247.175.170	A	mail.kcspr.net
64.247.175.242	A+PTR	sip.phxcmp.com