Robtex

Up: 72.25.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 72.25.128.0/20
Down right: 72.25.144.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.25.128.49	PTR	mail.ufcw789.org
72.25.128.49	A	mail.ufcw1189.org
72.25.128.58	PTR	bioe.com
72.25.128.58	PTR	mail.bioe.com
72.25.128.147	A	mail.catholicaid.com
72.25.129.19	PTR	ipgserver01.incomeplanninggroup.com
72.25.129.19	A	mail.suddendorflegal.com
72.25.129.150	A+PTR	mail.introworks.net
72.25.130.26	A+PTR	mail.psychiatricrecovery.com
72.25.130.155	PTR	mail.rupp-inc.com
72.25.130.250	A	mail.portu-sunberg.com
72.25.131.6	PTR	mail.qbs.com
72.25.131.18	PTR	mail.mpss.com
72.25.131.74	PTR	mail.pneumadyne.com
72.25.131.82	PTR	mail.mnthermalscience.com
72.25.131.130	PTR	mail.bardadv.com
72.25.131.153	PTR	mail.tslamerica.com
72.25.131.218	PTR	foxtrotsupport.com
72.25.131.226	PTR	mppss.com
72.25.132.33	A	northstates-as2.com
72.25.132.194	PTR	mail.powerelectric.com
72.25.132.194	A	mail2.powerelectric.com
72.25.132.235	A	netclosures.net
72.25.132.235	A	netclosure.com
72.25.132.235	A	netclosure.net
72.25.133.106	A	mail.laborerslocal132.com
72.25.133.210	A+PTR	mail.tivolitoo.com
72.25.134.18	PTR	mail.alliancesteelco.com
72.25.135.59	A	syncdirect.com
72.25.135.234	A	mail.oakgrovetreatmentcenter.com
72.25.136.34	A	*.armcom.com
72.25.136.34	A	smtpout.armcom.com
72.25.136.66	PTR	webmail.mintahoe.com
72.25.136.138	A+PTR	mail.dbm-inc.com
72.25.136.173	A	mail.glflc.com
72.25.138.58	PTR	remote.bobsproduce.com
72.25.138.122	PTR	mail.cooncreekwd.org
72.25.138.212	A	tnsmi-marx.com
72.25.138.244	A	powercycle.org
72.25.139.11	A	*.rzsolutions.com
72.25.139.11	A	mail.rzsolutions.com
72.25.139.11	A	216.17.81.66.rzsolutions.com
72.25.140.41	PTR	mn.commonhope.org
72.25.140.64	A	kktax.com
72.25.140.64	A	srv.kktax.com
72.25.140.91	A	popejohnpaul2.org
72.25.140.130	PTR	mail.indigenouspeoplestf.org
72.25.142.2	A	ns1.bermo.com
72.25.142.3	PTR	smtp1.bermo.com
72.25.142.11	A	exchange2.bermo.com
72.25.142.13	A	exchange0.bermo.com
72.25.142.21	A	smtp.20four7it.com
72.25.142.66	PTR	mail.lssnd.org
72.25.142.138	A	mail.automatededm.com
72.25.142.138	A	aedm1.automatededm.com
72.25.142.138	A	smtp.automatedextrusion.com
72.25.143.18	PTR	smtp.tgl.com
72.25.143.18	A	tgltr.com
72.25.143.18	A	tglsv.com
72.25.143.35	A+PTR	mail.generalpattern.com
72.25.143.91	A+PTR	ebranch.smwfcu.com
72.25.143.92	PTR	email.smwfcu.com
72.25.143.92	A	mail.smwfcu.com
72.25.144.43	PTR	mail.acsystems.com
72.25.144.45	A	ns2.smartcompany.net
72.25.145.2	A	cedarboats.com
72.25.145.2	A	trulylocal.com
72.25.145.2	A	cultivarag.com
72.25.145.115	A	mail.healthonealliance.org
72.25.145.117	A	mail.coloradohealth.org
72.25.145.243	A	mail.hampdenmedicalgroup.com
72.25.146.82	PTR	mail.columbinepaper.com
72.25.146.106	PTR	mail.lucatechnologies.com
72.25.146.133	PTR	em2.fitzfcu.org
72.25.147.42	A	tbghome.com
72.25.147.42	A	tbgathome.com
72.25.147.242	PTR	mail.karlschmidt.com
72.25.148.42	A	mail.coffmanco.com
72.25.149.234	PTR	nai.architects.com
72.25.149.244	PTR	mail.cstcm.edu
72.25.150.75	A+PTR	mail.melawllc.com
72.25.150.75	A	relay1.melawllc.com
72.25.150.75	A	relay2.melawllc.com
72.25.150.123	A	mail.mcclure-concrete.com
72.25.150.242	A	choiceelectric.com
72.25.150.242	A	mail.choiceelectric.com
72.25.151.154	A	mail.mosaices.com
72.25.151.235	A	mail.rwolaw.com
72.25.151.250	A	mail.frontins.com
72.25.153.50	A	mail.molklaw.com
72.25.154.19	PTR	mail.bawarch.com
72.25.154.114	A+PTR	rserver.safe-systems.com
72.25.154.178	A	communitymanagementspecialists.com
72.25.154.218	A	mail.summitblue.com
72.25.155.2	A+PTR	mail.wirelessconstructionservices.com
72.25.155.2	A	wirelessconstructionservices.com
72.25.155.187	PTR	exchange.aanac.org
72.25.157.114	A	mail.ryanfinancialinc.com
72.25.158.74	A	mail.jmcinstruments.com
72.25.158.122	PTR	mail.wangeandassociates.com
72.25.158.170	PTR	mail.tacsolutionsgroup.com
72.25.158.197	PTR	atlas.monks.com
72.25.158.198	PTR	protector.monks.com
72.25.159.42	PTR	mail.denverderm.com
72.25.159.58	A	mail.bryanmillercompany.com
72.25.159.203	A+PTR	mail.innovativeopenings.com
72.25.159.203	A	mail.insolroll.com