Robtex

Up: 208.89.128.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 208.89.128.0/25
Down right: 208.89.128.128/25
(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
208.89.128.132	A	mirunapavoni.com
208.89.128.133	PTR	crm-2011.win.iris
208.89.128.133	A	crm.iristel.net
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
208.89.128.140	A+PTR	www.iristel.ro
208.89.128.140	A	iristel.ro
208.89.128.140	A	iristel.md
208.89.128.141	PTR	www.iristel.net
208.89.128.141	A	www.vfax.ro
208.89.128.141	A	vfax.ro
208.89.128.142	A	irismobility.com
208.89.128.142	A	www.fone.ca
208.89.128.142	A	fone.ca
208.89.128.143	A+PTR	www.iristel.com
208.89.128.143	A	iristel.com
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
208.89.128.172	A	internal.espressodid.com
208.89.128.173	A	dev.espressodid.com
208.89.128.174	A	common.espressodid.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