Robtex

Up: 58.185.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 58.185.176.0/21
Down right: 58.185.184.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.185.176.153	A	www.xfilenet.com
58.185.177.3	A	mx3.islandgroup.com.sg
58.185.177.10	A+PTR	mx.islandgroup.com.sg
58.185.177.10	A	mx2.islandgroup.com.sg
58.185.177.138	A	sinwa-mx2.sinwaglobal.com
58.185.177.166	A	www.tdstech.synology.me
58.185.177.166	A	tdstech.synology.me
58.185.177.177	A+PTR	chungahdc.caengg.com
58.185.177.177	A	caengg.com
58.185.177.194	A+PTR	smtp.brass-asiapacific.com
58.185.177.194	A	brass.picomail.net
58.185.178.86	PTR	owa.seacastleships.com
58.185.178.154	A	dns.ihubmedia.com
58.185.178.154	A	ns2.ihubmedia.com
58.185.178.157	A	ihubanalytics.com
58.185.178.157	A	www.ihubanalytics.com
58.185.179.3	A	mail.mediesel.com
58.185.179.36	A	datadepot.com.sg
58.185.179.66	A	camp-challenge.com
58.185.179.66	A	www.camp-challenge.com
58.185.179.116	A	dsglobaltech.com
58.185.179.118	A	vct-online.com
58.185.180.39	A+PTR	mail.wlconglomerate.com
58.185.180.39	A+PTR	mail.wlstructures.com
58.185.180.39	A+PTR	mail.wlsunenergy.com
58.185.180.83	A	mail.mpillay.com
58.185.180.163	A	lianhock.com
58.185.180.163	A	ahpohstory.com
58.185.180.163	A	ahpohwindow.com
58.185.180.237	A	mail.masstrans.com
58.185.181.100	A	remote.termi-mesh.com.sg
58.185.181.114	A+PTR	sv1.replyx.sg
58.185.181.114	A	replyx.sg
58.185.181.114	A	frontwave-sms.com
58.185.181.116	PTR	sv2.replyx.com.sg
58.185.182.84	A+PTR	mail.comoffice.com
58.185.182.84	A	mx.comoffice.com
58.185.182.84	A	smtp.comoffice.com
58.185.183.8	A+PTR	smtp.auma.com.sg
58.185.183.60	A+PTR	remote.hsc.sg
58.185.183.148	A+PTR	mail2.wtt.com.sg
58.185.183.179	A+PTR	mx1.chevrons.org.sg
58.185.183.179	A	ns1.chevrons.org.sg
58.185.183.180	A	chevrons.org.sg
58.185.183.180	A	www.chevrons.org.sg
58.185.184.114	A+PTR	mail.rmagroup.com.sg
58.185.184.114	A	webmail.ldgsolutions.com
58.185.184.114	A	mail.agmonton.com.sg
58.185.185.35	A	ns2.linair.com.sg
58.185.185.35	A	avas.inform.com.sg
58.185.185.40	A	ns1.tathon.com.sg
58.185.185.40	A	ns3.ivero.com.sg
58.185.185.69	A	certislearning.net
58.185.185.69	A	hp.certislearning.net
58.185.186.21	A+PTR	sdlmail.store-deliver.com
58.185.186.21	A	sdlogist-nuxkbm.store-deliver.com
58.185.186.25	A	1shopsg.com
58.185.186.34	A+PTR	office.expatlivingsingapore.com
58.185.186.45	A	exchangeserver.lawton-yeo.com.sg
58.185.186.45	A	beeinvests.com
58.185.186.45	A	mail.beeinvests.com
58.185.186.195	PTR	ae.siarb.org.sg
58.185.186.243	A	cornerstoneportal.com
58.185.186.246	A	nttdatasolutions.com.sg
58.185.186.246	A	analyticscompany.com
58.185.186.246	A	*.analyticscompany.com
58.185.186.254	A	cornerstoneportal.com
58.185.187.115	PTR	gw.united.com.sg
58.185.187.115	A	ns2.iconnexxion.net
58.185.187.116	A	rmail.iconnexxion.net
58.185.187.132	A	pds.com.sg
58.185.187.132	A	pds01.pds.com.sg
58.185.187.132	A	pdsnt02.pds.com.sg
58.185.187.138	A	dtip2.d-tanker.com
58.185.187.139	A	dtip2.d-tanker.com
58.185.187.242	A	lovinglikecrazy.com
58.185.187.242	A	*.lovinglikecrazy.com
58.185.188.36	A	vrnet-inc.com
58.185.188.36	A	www.vrnet-inc.com
58.185.188.38	A+PTR	mail.vrnet-inc.com
58.185.188.98	A	citrix.msiships.com
58.185.188.99	A	smtp.msiships.com
58.185.188.100	A	msiships.msiships.com
58.185.188.103	A	msi-svr31.msiships.com
58.185.188.218	A	mail.stecs.com.sg
58.185.188.218	A	mail1.stecs.com.sg
58.185.188.218	A	stecs.com.sg
58.185.188.225	PTR	mail.ltongroup.com
58.185.188.225	PTR	mail.all-entertainment.com.sg
58.185.188.225	A+PTR	mail.innoform.com.sg
58.185.188.245	PTR	bayhotelhcm.com
58.185.188.245	PTR	bayhotelsingapore.com
58.185.188.245	A	nmail.bayhotelsingapore.com
58.185.188.246	A	bhmail.bayhotelsingapore.com
58.185.188.249	A+PTR	bmail.bayhotelhcm.com
58.185.188.249	A+PTR	bmail.bayhotelsingapore.com
58.185.189.19	A	smtp.brightsun.com.sg
58.185.189.35	PTR	mail.linet.com.sg
58.185.189.130	A	mail.dbh.com.sg
58.185.189.146	A	*.gmsent.com
58.185.189.146	A	gms1.gmsent.com
58.185.189.146	A	*.global-multitech.com
58.185.189.147	A+PTR	smtp1.global-multitech.com
58.185.189.147	PTR	smtp1.gmsent.com
58.185.189.148	PTR	smtp2.global-multitech.com
58.185.189.148	PTR	smtp2.gmsent.com
58.185.189.148	PTR	smtp2.securedsource.net
58.185.189.210	PTR	mail.eco.com.sg
58.185.189.210	A	sriramoptical.com
58.185.189.210	A	teamwork-hrms.com
58.185.190.162	A	daidansin.com.sg
58.185.190.200	A+PTR	server.hsinspection.com
58.185.190.200	A	remote.hsinspection.com
58.185.191.14	A	sembcorpsg.com
58.185.191.14	A	sembcorpindustry.com
58.185.191.14	A	greateastermlife.com
58.185.191.66	A	quattrovascular.com