Robtex

Up: 58.185.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 58.185.32.0/20
Down right: 58.185.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.185.32.27	A	www.zwiesel-kristallglas.sg
58.185.32.67	A	dns2.c2ccable.com
58.185.32.98	A+PTR	exchange.burda.com.sg
58.185.32.133	PTR	mail.luckyjoint.com.sg
58.185.32.195	A+PTR	mail.kjs.com.sg
58.185.32.230	PTR	srv1.alatas.com.sg
58.185.33.163	A	mail1.amos-sg.com
58.185.33.173	A+PTR	mail.amos-sg.com
58.185.33.173	A+PTR	smtp.amos-sg.com
58.185.33.173	A	amos-hk.com
58.185.33.199	A+PTR	pub2.netgraphy.com
58.185.33.200	A	namepub.com
58.185.33.201	PTR	pub1.netgraphy.com
58.185.33.201	A	sepo.com.my
58.185.33.201	A	keac.com
58.185.33.243	A	neverfail.treelineadvisors.com
58.185.33.243	A	neverfail.treelineim.com
58.185.34.2	PTR	mail.starasia.com.sg
58.185.34.2	A	cosmetical.com.sg
58.185.34.3	A	starasia-group.com
58.185.34.4	A	starasia.com.kh
58.185.34.4	A	starasia.com.vn
58.185.34.6	PTR	mx1.starasia.com.sg
58.185.34.243	A+PTR	mail.halconprimo.com
58.185.34.243	A+PTR	mail2.halconprimo.com
58.185.34.243	A	mail.vegaorient.com
58.185.35.2	A	tech-quest.bz
58.185.35.3	A	espider-telecom.com
58.185.35.3	A	mail.espider-telecom.com
58.185.35.3	A	mail.tech-quest.bz
58.185.35.194	A	britmarasia.sg
58.185.36.4	PTR	imsr07n.rdc.com.sg
58.185.36.4	PTR	smtp.rdc.com.sg
58.185.36.18	A	nec-lab.com
58.185.36.27	A	e2k10-uc.nec-lab.com
58.185.36.27	A	exch-2010.nec-lab.com
58.185.36.131	A	mail1.sca.com.sg
58.185.36.162	A+PTR	mail8.eastportmar.com
58.185.36.169	A	mail2.eastportmar.com
58.185.37.99	A	yellowboxstudios.com
58.185.37.101	A	mail.yellowboxstudios.com
58.185.37.103	A	smtp3.senokopower.com.sg
58.185.37.107	A	xinshengintl.com
58.185.37.147	A+PTR	mail.asmaralifestyle.com
58.185.37.149	PTR	mail.hostpro.com.sg
58.185.37.195	A	evtectraining.com.sg
58.185.37.195	A	mail.evtectraining.com.sg
58.185.37.196	A	www.securitymanagement.com.sg
58.185.37.196	A	securitymanagement.com.sg
58.185.40.210	PTR	mail.arplc.com.sg
58.185.40.243	A+PTR	smtp.crystaltime.com.sg
58.185.40.243	A	smtp.crystaltime.com.my
58.185.41.60	A+PTR	mail.sif.org.sg
58.185.41.131	A	www.ibsingremit.sg
58.185.41.131	A	ibsingremit.sg
58.185.41.132	A	indianbank.sg
58.185.41.132	A	www.indianbank.sg
58.185.41.178	A	oe2.com.sg
58.185.41.198	PTR	mail.singaporeflyer.com
58.185.41.198	PTR	mailsvr.singaporeflyer.com
58.185.41.198	PTR	webmail.singaporeflyer.com
58.185.42.2	A	mail.asaholiday.com
58.185.42.67	A	pridns.asa.com.sg
58.185.43.196	A	www.omps.com.sg
58.185.43.229	A	ns1.eq-insurance.com.sg
58.185.43.232	A	www.eq-insurance.com.sg
58.185.44.18	PTR	mail.rubicon-offshore.com
58.185.44.53	A	mail.citic.com.sg
58.185.44.54	A	remote.citic.com.sg
58.185.44.162	PTR	heart4asia.net
58.185.44.164	A+PTR	mail.heart4asia.net
58.185.44.165	A+PTR	mail.omfmail.com
58.185.44.165	A	www.omfmail.com
58.185.44.165	A	*.omfmail.com
58.185.44.174	PTR	omfmail.com
58.185.45.23	A	lantro.com.sg
58.185.45.100	A	mail.chutex.com.sg
58.185.45.146	A	parent-teacher.com
58.185.45.146	A	vectravli8.parent-teacher.com
58.185.45.147	A+PTR	mx.eximfr.com.sg
58.185.45.148	A	mail.eximfr.com.sg
58.185.45.218	A	sgsmartlearners.com
58.185.46.129	A	sg.pagenation.com
58.185.46.129	A	id.pagenation.com
58.185.46.129	A	my.pagenation.com
58.185.46.187	A	eaglewingscinematics.com.sg
58.185.46.195	A	mail.mbc.com.my
58.185.46.212	A	ebooking.temasekclub.org.sg
58.185.47.37	PTR	mail.btrts.org.sg
58.185.47.84	PTR	mbox.eurekahedge.com
58.185.47.105	A	mail1.sagatreecap.com
58.185.47.105	A	mail1.sagatreecapital.com
58.185.47.178	A	mail.gfsfilter.com
58.185.47.178	A	mail.scsunmicron.com
58.185.47.178	A	smtp2.gfsfilter.com
58.185.48.8	A	mx1.fareast.com.sg
58.185.48.9	A	mx2.fareast.com.sg
58.185.48.147	A+PTR	webmail.concordehotel.com.sg
58.185.48.148	A+PTR	mail.concordehotel.com.sg
58.185.48.173	PTR	smtp2.camfilfarr.net
58.185.49.18	A	dns2.fsmtech.com
58.185.49.18	A	dns1.fsmtech.com
58.185.49.18	A	jupiter.fsmtech.com
58.185.49.19	A	fsmtech.com
58.185.49.99	PTR	exchange.framework.sg
58.185.49.202	A	www.mitsui-soko.com.sg
58.185.52.17	A	www.cnt.com.sg
58.185.52.17	A	justattach.com
58.185.52.17	A	oily101.com
58.185.52.46	A	smtp.esplanade.com
58.185.52.46	A	rd1.esplanade.com
58.185.53.23	A	ns2.issgroup.com.au
58.185.53.23	A	ns2.isspl.com.au
58.185.53.117	A	mail.unixsolve.com
58.185.53.193	A	globe3.tomoe.com.sg
58.185.53.193	A	web.microsoftion.com
58.185.54.83	A	mail.national.sg
58.185.54.83	A	mail.ssl.sg
58.185.54.88	A	brightmail.national.sg
58.185.54.98	PTR	sts.sg
58.185.54.145	A	mail.icdlap.com
58.185.54.181	PTR	bcsgcs001.bilcare.com
58.185.54.217	A	interfoood.com
58.185.55.4	PTR	email.qsadvertising.com.sg
58.185.55.4	A	email.qs.sg
58.185.55.10	A+PTR	mail.qs.sg
58.185.55.10	A	mail.qsprint.com.sg
58.185.55.18	A	vaniah.com
58.185.55.114	A	taksg-exchg-svr.tak.sg
58.185.56.9	A	etexc2003.estatetrust.com.sg
58.185.56.88	PTR	manuel.isis.com
58.185.56.88	A	manuel.isis.com.sg
58.185.56.90	A	mx1.heidrick-apac.com
58.185.56.90	A	mail.isis.com.sg
58.185.56.218	PTR	gateway.sembawanggolf.org.sg
58.185.56.218	A	www.sembawanggolf.org.sg
58.185.57.21	A	sgcyberlock.com
58.185.58.46	A	www.hkawards.com.sg
58.185.58.243	A+PTR	mail.aplusiasia.com
58.185.59.75	A+PTR	jiro.agacorp.com.sg
58.185.59.88	A+PTR	smtp.icprc.com
58.185.59.88	A	icprc.com
58.185.59.178	A	jobsnet.com.sg
58.185.59.178	A	jobsnet.com.my
58.185.59.182	PTR	mail.caliber.com.sg
58.185.59.182	PTR	mail.jpsolutions.com.sg
58.185.59.182	PTR	mail.jptech.com.sg
58.185.59.185	A	mail.ws.sg
58.185.61.90	A	ctservices.ddns.net