Robtex

Up: 203.166.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 203.166.128.0/21
Down right: 203.166.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.166.128.37	A	www.iaspire.net
203.166.128.58	A+PTR	sms.iaspire.net
203.166.128.131	A+PTR	smtp1.iaspire.net
203.166.128.131	A	smtp.iaspire.net
203.166.128.131	A	alletintengrijs.nl
203.166.128.133	PTR	smtp3.iaspire.net
203.166.128.134	PTR	mrtg.iaspire.net
203.166.128.135	PTR	rm.iaspire.net
203.166.128.146	PTR	www.bossard.com.sg
203.166.128.146	A	bossard.com.sg
203.166.128.168	PTR	dns1.iaspire.net
203.166.128.175	A+PTR	exmail.iaspire.net
203.166.128.188	PTR	dns2.iaspire.net
203.166.128.188	A+PTR	smtp2.iaspire.net
203.166.128.190	PTR	mail.frontline.com.sg
203.166.129.51	PTR	dns3.iaspire.net
203.166.129.80	A	dpsearch.com.sg
203.166.133.26	A	mail.aasm.edu.sg
203.166.134.63	PTR	castle.warriorcrunch.net
203.166.136.33	PTR	mail.digitalconcierge.sg
203.166.136.73	A	mailgw03.kreabgavinanderson.com
203.166.137.4	A	ns2.websatmedia.net
203.166.137.11	A+PTR	try1.iaspire.net
203.166.137.26	A	www.asiagis.com
203.166.137.26	A	navfone.com
203.166.137.33	PTR	mail.locale.sg
203.166.137.33	PTR	mail.locale.com.sg
203.166.137.130	A	sbi.gftforex.com
203.166.137.172	A	3rdarch.biz
203.166.137.181	PTR	ctlcrweb01.help.creative.com
203.166.138.15	A+PTR	ebid2.iaspire.net
203.166.138.44	PTR	netra.amtek.com.sg
203.166.138.49	A+PTR	mailing2.oneloyalty.com
203.166.138.53	PTR	mail2.oneempower.com
203.166.138.58	A	oneflexi.net
203.166.138.58	A	oneflexi.biz
203.166.138.85	PTR	webl.asiaidea.com
203.166.138.90	PTR	asiaidea.com
203.166.138.90	A	habitat.com.sg
203.166.138.112	A	dns2.mph.com.my
203.166.138.118	A+PTR	mail.asiaidea.com
203.166.138.118	A	mail.baliturtleisland.com
203.166.138.118	A	gthq.com
203.166.138.214	PTR	be1.realmail-asp.com
203.166.138.214	A	spidevelopment.realmail2.net
203.166.138.214	A	panasiamarine.realmail2.net
203.166.138.215	PTR	be2.realmail-asp.com
203.166.139.5	PTR	smtp.petrafoods.com
203.166.139.5	A	delfifoods.com
203.166.139.5	A	petrafoods.com.sg
203.166.139.6	PTR	iron-mail.delficocoa.com
203.166.139.6	PTR	iron-mail.delfifoods.com
203.166.139.6	PTR	iron-mail.delfimarketing.com
203.166.139.70	A	icoob.freetmn.com
203.166.139.77	PTR	smtp.bizo-net.com
203.166.139.83	PTR	webhost.iaspire.net
203.166.139.83	A	mail.corporate-gifts.com.sg
203.166.139.83	A	corporate-gifts.com.sg
203.166.139.85	A	vzplesk.iaspire.net
203.166.139.90	A	bran.sg
203.166.139.161	PTR	greenhse.com
203.166.139.161	PTR	mx.greenhse.com
203.166.139.179	PTR	unitysrv.unityresourcesgroup.com
203.166.139.187	PTR	smtp.frontline.com.sg
203.166.139.197	PTR	mail.accellion.com
203.166.139.209	PTR	203-166-139-209.accellion.com
203.166.141.44	A	webhost.iaspire.net
203.166.141.47	PTR	sgpos014.btfrontline.com.sg