Robtex

Up: 203.81.44.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.81.46.0/24
Down right: 203.81.47.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.81.46.20	PTR	pansfw.pan-abrasives.com
203.81.46.21	PTR	mail.pan-abrasives.com
203.81.46.21	PTR	pansgmail.pan-abrasives.com
203.81.46.21	PTR	pop3.pan-abrasives.com
203.81.46.44	PTR	mansgmqsmtp.manfinancial.com.sg
203.81.46.101	PTR	ttsgr5.tatatechnologies.com.sg
203.81.46.102	PTR	ttsgweb.tatatechnologies.com.sg
203.81.46.103	PTR	ttplex.tatatechnologies.com.sg
203.81.46.104	PTR	ttsap01.tatatechnologies.com.sg
203.81.46.105	PTR	ttsap02.tatatechnologies.com.sg
203.81.46.107	PTR	its.tatatechnologies.com.sg
203.81.46.152	A	mail.wangdeming.com
203.81.46.152	A	mail.sapthaswaram.com
203.81.46.173	A	fishingouting.com
203.81.46.173	A	mail.directmmo.com
203.81.46.174	A	*.sgberjangka.com
203.81.46.174	A	www.sgberjangka.com
203.81.46.174	A	www.bestprofit-futures.com
203.81.46.180	A	mail.sgberjangka.com
203.81.46.213	PTR	mail.litespeed.com.sg
203.81.46.218	PTR	mail1.litespeed.com.sg
203.81.46.220	PTR	mail2.litespeed.com.sg
203.81.46.234	PTR	wnv002pl.worldnetvisions.com
203.81.46.234	A	anthomi.com.sg
203.81.46.234	A	www.autospliceasia.com.sg
203.81.46.235	PTR	wnv003pl.worldnetvisions.com
203.81.46.236	PTR	wnv021pl.worldnetvisions.com
203.81.46.236	A	sokkia.com.sg
203.81.46.236	A	ns3.worldnetvisions.com
203.81.46.238	A	maymizu.com
203.81.46.242	A	richmenu.com
203.81.46.242	A	mail.richmenu.com
203.81.46.247	A	nicolabs.com.sg
203.81.46.248	A	mail.nicosteel.com
203.81.46.248	A	mail.slimicovip.com
203.81.46.249	A	solagene.com
203.81.46.254	A+PTR	smtp1.worldnetvisions.com
203.81.47.20	A	selenium.pacweb.net.sg
203.81.47.26	PTR	www.qubitwerks.com
203.81.47.32	A	boulder.pacweb.net.sg
203.81.47.58	PTR	fujifilm.com.sg
203.81.47.69	PTR	ns2.limelitesolutions.com
203.81.47.70	A	opal.pacweb.net.sg
203.81.47.70	A	octopustravel.com.ph
203.81.47.76	A	alstron.cn
203.81.47.84	A+PTR	phosphate.pacweb.net.sg
203.81.47.88	PTR	mail.catchacorp.com
203.81.47.102	PTR	102.inovuus.com
203.81.47.103	PTR	alpha.inovuus.com
203.81.47.103	A	dv2.wallstraits.com
203.81.47.105	PTR	omega.inovuus.com
203.81.47.108	PTR	www.itzone.tv
203.81.47.108	A	itmartsingapore.com
203.81.47.109	A	mail.kingleymachinery.com
203.81.47.111	A	dns1.sgserver.com
203.81.47.112	PTR	dns2.itzone.tv
203.81.47.116	PTR	116.itzone.tv
203.81.47.117	PTR	117.itzone.tv
203.81.47.156	PTR	rahman.maxinfo.com.sg