Robtex

Up: 72.11.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 72.11.112.0/21
Down right: 72.11.120.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.11.112.192	A	mail.automotiveproductsinc.com
72.11.113.61	A	dynicusasales.com
72.11.113.66	A	mail.rothmiller.com
72.11.113.130	PTR	oregoninfragard.org
72.11.113.139	PTR	mail.valogdencenter.org
72.11.113.139	A	valogdencenter.org
72.11.113.147	PTR	calysto.focussemi.com
72.11.115.116	A	mail.telemed.org
72.11.115.116	A	mail2.telemed.org
72.11.115.118	A	trc.telemed.org
72.11.115.163	A	mail.triadmachinery.com
72.11.115.182	PTR	clackamas.pmrmtg.com
72.11.115.206	PTR	mail.trinetech.com
72.11.115.234	A	*.buyweston.com
72.11.116.85	PTR	mail.hayden-engineers.com
72.11.116.158	A	mx1.surface-home.com
72.11.117.226	A	mail.ptoncall.com
72.11.117.226	A	mail.therapyplacementservices.com
72.11.117.234	PTR	mail.jjdavidson.com
72.11.118.90	PTR	ryonetcorporation.com
72.11.118.90	A	icecomunications.com
72.11.118.90	A	hendersonbayproducts.com
72.11.118.106	A	mail2.cinetopiatheaters.com
72.11.120.4	PTR	mail.dressforsuccessoregon.org
72.11.120.76	PTR	mail.romanogatlandnw.com
72.11.120.96	A	mx.enaclark.com
72.11.120.115	PTR	mail.t-a-inc.com
72.11.120.115	A	mail.teamallianceusa.com
72.11.120.174	PTR	ccs06.correaconsulting.com
72.11.120.246	A	mail.thehealthcarecollaborativegroup.com
72.11.122.58	A	mail.macromfg.com
72.11.122.98	A	mail.downtowndevgrp.com
72.11.122.148	A	mail.tozmoz.net
72.11.122.149	A	greshamtoyota.info
72.11.122.149	A	mail.greshamtoyota.info
72.11.122.158	PTR	mail.ocmusa.info
72.11.122.162	PTR	ns1.eescoc.com
72.11.123.101	PTR	mail.pre1.com
72.11.123.103	PTR	pdfpreview.com
72.11.125.10	PTR	mail.lifeworksnw.org
72.11.125.66	A+PTR	mail.postergarden.com
72.11.125.66	A	mail.flowerbox.com
72.11.125.66	A	mail.postergarden.ca
72.11.125.195	PTR	mail.multnomah.edu
72.11.125.211	PTR	prodx.com
72.11.126.150	PTR	denali.mapscu.com
72.11.126.162	PTR	mail.irwinhodsongroup.com
72.11.127.27	A	smtp.parksmetal.com
72.11.127.28	PTR	aspenlandscape.com
72.11.127.169	A	mail.extremetire.net