Robtex

Up: 208.89.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.89.128.0/22
Down right: 208.89.132.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.89.128.80	A+PTR	sbc1.iristel.net
208.89.128.80	A	sbc2.iristel.net
208.89.128.107	A+PTR	sbc1.sugarmobile.ca
208.89.128.123	A+PTR	tracer.iristel.net
208.89.128.130	A+PTR	ns3.iristel.net
208.89.128.130	A	ns2.iristel.net
208.89.128.132	A	carteleprepaid.ro
208.89.128.132	A	www.carteleprepaid.ro
208.89.128.133	PTR	crm-2011.win.iris
208.89.128.136	A	crmtest.iristel.net
208.89.128.137	A+PTR	espressodid.com
208.89.128.137	A	www.espressodid.com
208.89.128.138	A+PTR	bsems1.iristel.net
208.89.128.148	A	sbcproxy1.iristel.net
208.89.128.153	A	adriantoba.com
208.89.128.156	A+PTR	mon.iristel.net
208.89.128.158	A	my.iristel.net
208.89.128.159	A+PTR	syslog1.iristel.net
208.89.128.161	A+PTR	smsc.iristel.ca
208.89.128.163	A+PTR	connect.espressodid.com
208.89.128.164	A+PTR	async.iristel.net
208.89.128.167	A	sms.iristel.ca
208.89.128.169	A+PTR	gs1.broadfone.net
208.89.128.171	PTR	mail.iristel.com
208.89.128.171	A	mx.icewireless.ca
208.89.128.171	A	irismail1.iristel.com
208.89.128.179	A	sp.iristel.net
208.89.128.180	A	sntp.icewireless.ca
208.89.128.180	A	sntp.iristel.net
208.89.128.183	A+PTR	cards.iristel.com
208.89.128.184	A+PTR	bsps1.iristel.net
208.89.128.188	PTR	pm.iristel.net
208.89.128.188	A	voiceportal.allstream.com
208.89.129.84	A	broadfone.net
208.89.129.84	A	worldphone.ca
208.89.129.84	A	broadfone.ca
208.89.129.111	A+PTR	sipis.sugarmobile.ca
208.89.129.115	PTR	icewireless.ca
208.89.129.115	A	icewireless.com
208.89.129.125	A+PTR	bsws1.iristel.net
208.89.129.125	A	broadfone1.iristel.ca
208.89.129.125	A	im.iristel.ca
208.89.129.126	A	im.iristel.ca
208.89.129.135	A	icewireless.net
208.89.129.135	A	icew.ca
208.89.129.165	A+PTR	kayako.iristel.net
208.89.129.180	A+PTR	acmennc.iristel.net
208.89.129.185	PTR	stage.iristel.com
208.89.129.185	A+PTR	www.iristel.ca
208.89.129.185	A	worldphone.ca
208.89.129.203	A	mail.416direct.ca
208.89.129.204	A	*.enginet.ca
208.89.129.209	A	jemmforceapps.com
208.89.129.231	A+PTR	iglobaltracking.iristel.com
208.89.129.240	A+PTR	speedtest.iristel.net
208.89.129.247	A+PTR	mx.icewireless.com
208.89.131.200	A+PTR	ns.iristel.net
208.89.131.200	A	ns.iristel.com
208.89.132.2	PTR	btroc2-br1.roc2.bluetie.com
208.89.132.3	A	btroc2-br2.roc2.bluetie.com
208.89.132.18	PTR	generic.roc2.bluetie.com
208.89.132.21	A+PTR	webmail.excite.com
208.89.132.21	A	mail.excite.com
208.89.132.21	A	iac-excite.pl.bluetie.com
208.89.132.22	PTR	webmail.myway.com
208.89.132.24	A+PTR	api2.bluetie.com
208.89.132.27	A+PTR	mail-in-excite.roc2.bluetie.com
208.89.132.28	A+PTR	mail-in-myway.roc2.bluetie.com
208.89.132.29	A+PTR	mail-in-iwon.roc2.bluetie.com
208.89.132.32	PTR	www.breezesocial.com
208.89.132.33	A	stage.breezesocial.com
208.89.132.35	PTR	mx04.register.com
208.89.132.36	A	mailapp02.register.com
208.89.132.37	A	api.breezesocial.com
208.89.132.41	PTR	tls-pl-imap.bluetie.com
208.89.132.41	A	mail.carlsmower.com
208.89.132.41	A	mail.hillyridge.com
208.89.132.47	PTR	dashboard.adventive.com
208.89.132.50	A	mail.myfam.com
208.89.132.50	A	mail.honorcraft.com
208.89.132.50	A	smtp.torrealba.com
208.89.132.74	A	api.bluetie.com
208.89.132.100	A	access.bluetie.com
208.89.132.113	A+PTR	mail.bluetie.com
208.89.132.113	A	mail3.bluetie.com
208.89.132.113	A	mail1.bluetie.com
208.89.132.121	A+PTR	www.bluetie.com
208.89.132.121	A	bluetie.com
208.89.132.121	A	breezesocial.com
208.89.132.141	A+PTR	outbound001.roc2.bluetie.com
208.89.132.142	A+PTR	outbound002.roc2.bluetie.com
208.89.132.143	A+PTR	outbound003.roc2.bluetie.com
208.89.132.144	A+PTR	outbound004.roc2.bluetie.com
208.89.132.145	A+PTR	outbound005.roc2.bluetie.com
208.89.132.147	A+PTR	altout002.roc2.bluetie.com
208.89.132.173	PTR	outbound006.nyc1.bluetie.com
208.89.132.199	A+PTR	mail.bluetie.com
208.89.132.199	A	mail3.bluetie.com
208.89.132.199	A	mail1.bluetie.com
208.89.132.201	A	app2.bluetie.com
208.89.132.202	A+PTR	mail-in.roc2.bluetie.com
208.89.132.204	A	freeservers.pl.bluetie.com
208.89.132.208	A	ftp.bluetie.com
208.89.132.209	A	bluetiestage.com
208.89.132.217	A+PTR	pl-web.bluetie.com
208.89.132.217	A	libertytax.pl.bluetie.com
208.89.132.217	A	zeemail.libertytax.com
208.89.132.219	PTR	imap-migration.roc2.bluetie.com
208.89.132.219	A	mycompanyemail.com
208.89.132.219	A	support.bluetie.com
208.89.132.220	PTR	app3.bluetie.com
208.89.132.224	A	lunarpc.pl.bluetie.com
208.89.132.226	PTR	webmail.ezmailcenter.com
208.89.132.226	A	ezmailcenter.pl.bluetie.com
208.89.132.241	PTR	mail1.communityarchitect.com
208.89.132.241	A	mai1.communityarchitect.com
208.89.133.7	A	bluetie.com
208.89.133.7	A	www.bluetie.com
208.89.133.7	A	support.bluetie.com
208.89.133.9	A	imap.bluetie.com
208.89.133.18	A+PTR	outbound003.nyc1.bluetie.net
208.89.133.19	A+PTR	outbound004.nyc1.bluetie.net
208.89.133.130	A	login.excite.com
208.89.135.32	A	inbound001.btdev1.net
208.89.135.33	A+PTR	inbound001.btdev2.net
208.89.135.34	A+PTR	inbound001.bttst1.com
208.89.135.34	A	inbound001.bttest.com
208.89.135.77	A	chscts.com
208.89.135.120	A	mail.bluetiestage.com