Robtex

Up: 165.212.0.0/14
Can't show all results, try to descend to a more specific CIDR
Down left: 165.212.0.0/16
Down right: 165.213.0.0/16
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
165.212.1.173	A+PTR	smtp.mbox.net
165.212.1.174	A	pop.mbox.net
165.212.1.179	A	mbox.net
165.212.2.1	PTR	web1p.mbox.net
165.212.2.2	PTR	web2p.mbox.net
165.212.4.1	PTR	web1s.mbox.net
165.212.8.1	A+PTR	cmsweb15.cms.usa.net
165.212.8.2	A	cmsweb02.cms.usa.net
165.212.8.7	A	cmsweb04.cms.usa.net
165.212.8.8	A	cmsweb08.cms.usa.net
165.212.10.1	A+PTR	cmsmail01.cms.usa.net
165.212.10.11	A	netmail11.cms.usa.net
165.212.10.12	A	netmail12.cms.usa.net
165.212.10.13	A	cmsmail13.cms.usa.net
165.212.12.1	PTR	cndvg001.usa.net
165.212.12.1	A	dnspri01.usa.net
165.212.12.3	PTR	bcdvg003.cms.usa.net
165.212.12.3	A	se.usa.net
165.212.12.7	A	dnspri01-old.usa.net
165.212.12.12	A	uzdvg002.cms.usa.net
165.212.14.253	A+PTR	pop3.postoffice.net
165.212.14.253	A	pop.postoffice.net
165.212.15.52	A+PTR	e2k.usa.net
165.212.15.53	A	backe2k.usa.net
165.212.16.11	PTR	pwdvg001.phone.com
165.212.20.159	PTR	mtdvt159.msl.usa.net
165.212.21.1	A	mailadmin.net
165.212.22.5	PTR	avsrv.corp.usa.net
165.212.22.31	A+PTR	onyx-prod.usa.net
165.212.22.32	A+PTR	onyx-web.usa.net
165.212.22.33	A+PTR	onyx-report.usa.net
165.212.22.34	A	onyx-print-list.usa.net
165.212.32.3	PTR	mail.gspsf.com
165.212.48.1	PTR	exch.usa.net
165.212.48.2	PTR	mailexch.usa.net
165.212.49.1	PTR	mail.messagesonline.net
165.212.49.1	A	exchprod.usa.net
165.212.49.1	A	messagesonline.net
165.212.49.49	A	nethawk.usa.net
165.212.49.201	A	outbound-gw.messagesonline.net
165.212.54.6	A	ms02.mailsafe.usa.net
165.212.54.10	A	mailsafe.usa.net
165.212.54.10	A	perimeterusa.mailsafe.usa.net
165.212.54.26	A	atlancoast.mailsafe.usa.net
165.212.54.52	A	perimeterusa.mailsafe.usa.net
165.212.64.1	PTR	address01.mbox.net
165.212.64.7	A	esload02.eservices.usa.net
165.212.64.8	A+PTR	esmail01.mbox.net
165.212.64.9	A	esmail02.mbox.net
165.212.64.9	A	emd2.mbox.net
165.212.66.37	A	ptapp-prod1.adminportal.com
165.212.66.228	A	insync.silversky.com
165.212.80.22	A	exchange.csmbakerysolutions.com
165.212.80.23	A	autodiscover.bakemark.com
165.212.80.23	A	autodiscover.d2.csmbakerysolutions.com
165.212.80.23	A	autodiscover.exchange.csmbakerysolutions.com
165.212.80.234	A	exchange.us.ai.baesystems.com
165.212.81.15	A	exchange.cloud.perimeterusa.com
165.212.81.16	A	autodiscover.cloud.perimeterusa.com
165.212.96.214	A	radar-c.silversky.com
165.212.96.217	A	xoradar.xo.com
165.212.96.218	A	xowebvpn.xo.com
165.212.98.5	A	exchange.cloud.perimeterusa.com
165.212.98.5	A	mail.streetmktg.com
165.212.98.5	A	mail.coloradokitchens.com
165.212.98.7	A	autodiscover.cloud.perimeterusa.com
165.212.98.18	PTR	sip.mbox.net
165.212.99.5	A	exchange.cloud.perimeterusa.com
165.212.99.5	A	mail.streetmktg.com
165.212.99.7	A	autodiscover.cloud.perimeterusa.com
165.212.100.72	A	mx.rd2orl.net
165.212.100.120	A	mx.exorl.net
165.212.100.249	A	mx.exorl.usa.net
165.212.101.11	A	lulu.dev.usa.net
165.212.109.69	A	smtpfeed01.seccas.com
165.212.109.83	A	dns01-nyc.seccas.com
165.212.109.87	A	archive.seccas.com
165.212.109.89	A	compliance.seccas.com
165.212.116.97	A	esweeper.messagesonline.net
165.212.116.202	A+PTR	e12.usa.net
165.212.116.220	A	email.mbox.net
165.212.116.235	A	mail2.ual.com
165.212.117.20	A	autodiscover.bakemark.com
165.212.117.20	A	autodiscover.d2.csmbakerysolutions.com
165.212.117.20	A	autodiscover.exchange.csmbakerysolutions.com
165.212.117.21	A	exchange.csmbakerysolutions.com
165.212.118.10	A	exchange.us.ai.baesystems.com
165.212.120.50	A	lyncab.postoffice.net
165.212.120.70	A	lync.postoffice.net
165.212.120.72	A	skypeav.postoffice.net
165.212.120.72	A	lyncav.postoffice.net
165.212.120.224	A	exchange.cloud.perimeterusa.com
165.212.120.225	A	autodiscover.cloud.perimeterusa.com
165.212.126.1	A+PTR	secure.fnbn.com
165.212.126.3	A	mail.fnbn.com
165.212.127.4	A	backlundinvestment.com
165.212.140.16	A	berkvpn.com
165.212.149.4	A	mail.novadebt.org
165.212.149.38	A	lyncbaycoastbank.com
165.212.153.89	A	mail.cbtc.com
165.212.153.167	A	psfuc.mobi
165.212.153.167	A	pfscu.mobi
165.212.153.167	A	psfcu.mobi
165.212.155.34	A	mail1.legacybanks.com
165.212.155.34	A	mail2.legacybanks.com
165.212.155.60	A	yoursbalender.com
165.212.155.60	A	cbcnationalbankmortgage.com
165.212.156.68	PTR	net-165-212-156-68.net.perimeterusa.com
165.212.156.68	A	mail2.connecticutcommunitybank.com
165.212.156.71	A+PTR	mail1.westportnational.com
165.212.156.94	A	mail.nhamg.com
165.212.156.211	PTR	net-165-212-156-211.net.perimeterusa.com
165.212.158.98	A	leebank.org
165.212.158.99	A	freedomnationalbank.org
165.212.158.116	A	berkshirefs.org
165.212.158.138	A	vault.countrybank.com
165.212.158.238	A	berkvpn.com
165.212.160.15	A	kynsw01.perimeterusa.com
165.212.160.16	A	kynsw02.perimeterusa.com
165.212.160.17	A	kynsw03.perimeterusa.com
165.212.162.10	A	cabrillocu.org
165.212.162.209	PTR	net-165-212-162-209.net.perimeterusa.com
165.212.163.71	A	mail.pcbmb.com
165.212.163.71	A	*.pcbmb.com
165.212.163.71	A	pcbmb.com
165.212.166.2	PTR	net-165-212-166-2.net.perimeterusa.com
165.212.166.3	PTR	net-165-212-166-3.net.perimeterusa.com
165.212.166.4	PTR	net-165-212-166-4.net.perimeterusa.com
165.212.168.2	PTR	net-165-212-168-2.net.perimeterusa.com
165.212.168.3	PTR	net-165-212-168-3.net.perimeterusa.com
165.212.168.4	PTR	net-165-212-168-4.net.perimeterusa.com
165.212.168.10	A	fnbgreenfield.org
165.212.168.10	A	fnbgreenfield.net
165.212.168.10	A	www.fnbmassena.com
165.212.176.15	A	ibs.bathsavings.com
165.212.176.26	A	mail.citizensunion.net
165.212.176.99	A	mail.monumentbank.com
165.212.176.114	A	webmail.bhlinsurance.com
165.212.178.117	A	mail.mbtinsurance.com
165.212.179.72	A	mail.plimothadvisors.net
165.212.179.119	A	oneidabank.mobi
165.212.179.186	A	cbremote.com
165.212.180.10	A	securityview.com
165.212.180.10	A	messageview.com
165.212.180.10	A	perimeter.securityview.com
165.212.180.13	A	riskprofile.org
165.212.182.18	A	goe1.ct.mbox.net
165.212.182.19	A	goe2.ct.mbox.net
165.212.182.32	A	goe3.ct.mbox.net
165.212.182.33	A	goe4.ct.mbox.net
165.212.185.152	A	desktop.sawyersavings.com
165.212.185.166	A	mail.breencg.com
165.212.185.199	A	mail.yadkinvalleybank.com
165.212.185.199	A	mail.yadkinbank.com
165.212.186.2	PTR	net-165-212-186-2.net.perimeterusa.com
165.212.186.27	A	permvpn01.perimeterusa.com
165.212.186.27	A	ynotuo.com
165.212.187.74	A	mail.usnefcu.com
165.212.187.84	A	www.msb-ms.com
165.212.188.4	PTR	net-165-212-188-4.net.perimeterusa.com
165.212.200.3	PTR	net-165-212-200-3.net.perimeterusa.com
165.212.242.4	PTR	net-165-212-242-4.net.perimeterusa.com
165.212.244.53	A	cp.pasilversky.com
165.212.246.1	PTR	net-165-212-246-1.net.perimeterusa.com
165.212.246.2	PTR	net-165-212-246-2.net.perimeterusa.com
165.213.52.53	A	samsung.info
165.213.52.53	A	sec.samsung.net
165.213.149.218	A	slp-info.sec.samsung.net
165.213.199.98	A	push2mobile.net
165.213.249.83	A	singlesamsung.com