Robtex

Up: 42.61.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 42.61.48.0/21
Down right: 42.61.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
42.61.48.3	A+PTR	smtp.wirana.com.sg
42.61.48.5	A	mail.wirana.com.sg
42.61.48.122	A	winterino.i-access.com.sg
42.61.48.124	A	imail.i-access.com.sg
42.61.48.125	A	www.i-access.com.sg
42.61.48.163	A+PTR	mail.changicove.com
42.61.48.164	A+PTR	mail2.changicove.com
42.61.48.164	A	mail.ccevents.sg
42.61.48.168	A	changicove.com
42.61.48.193	A	invan.com.sg
42.61.48.196	A	smg.invan.com.sg
42.61.48.226	A	mail.aupmne.com
42.61.49.180	A	mail.caminointernational.com
42.61.49.188	A	apsg-hr.com
42.61.50.99	A	mail.smbcgroup.com.au
42.61.50.150	A	remote.rapidproto.com.sg
42.61.50.170	A	mail.frontierforce.com
42.61.50.174	PTR	mail.ffdx.net
42.61.50.174	A	mail.ecofuelsunway.com
42.61.50.174	A	mail.liangseng.com
42.61.50.202	A+PTR	mx1.simplex.sg
42.61.50.202	A	mail.mysimplex.com
42.61.50.203	PTR	mx2.simplex.sg
42.61.50.203	A	dns3.mysimplex.com
42.61.50.203	A	dns3.ag-polytronics.com
42.61.50.206	PTR	sg.sdmmail.com
42.61.51.3	PTR	mail.lifecorplimited.com
42.61.51.3	A	mail.sfs.com.sg
42.61.51.3	A	mail.cygenics.com
42.61.51.35	PTR	ns1.hersing.com.sg
42.61.51.36	PTR	ns2.hersing.com.sg
42.61.51.67	A+PTR	mail.ellacheong.asia
42.61.51.83	A	mail.nustar-tech.com
42.61.51.84	A	mx.nustar-tech.com
42.61.51.177	A	mnce.biz
42.61.51.210	PTR	bizlink.org.sg
42.61.51.210	A	excserver.bizlink.org.sg
42.61.51.210	A	mail.bizlink.org.sg
42.61.52.75	PTR	smtp.srss.com.sg
42.61.52.75	A	po.srss.com.sg
42.61.52.121	A	presto-deals-api.enovax.com
42.61.52.210	PTR	mail.bemointernational.com
42.61.52.210	A	mail.bemoint.com
42.61.52.210	A	mail1.bemointernational.com
42.61.52.238	A	abl.com.sg
42.61.52.238	A	www.abl.com.sg
42.61.53.82	A	debrevir.com
42.61.53.82	A	mail.debrevir.com
42.61.53.124	A	po2.srss.com.sg
42.61.53.151	A	licsingapore.com
42.61.53.151	A	mail.licsingapore.com
42.61.53.195	A	www.jcc.org.sg
42.61.54.105	PTR	mail.bimserver.com.sg
42.61.54.105	A	konghwee.com
42.61.54.107	A	bimserver.com.sg
42.61.54.170	A	app.mediadeliveryplatform.com
42.61.55.35	A	ae.oraclelaw.sg
42.61.55.66	A	antstribe.com
42.61.55.66	A	www.antstribe.com
42.61.55.67	A	antstribe.com
42.61.55.67	A	samsonite.co.id
42.61.55.67	A	www.samsonite.co.id
42.61.55.157	A	mail.omypay.com
42.61.55.157	A	mail.51netu.com
42.61.55.166	A	exchange.getaxintl.com
42.61.55.166	A	exchange.getaxocean.com
42.61.55.166	A	getaxocean.com
42.61.55.211	A+PTR	mail.delta.com.sg
42.61.56.44	A	mizuho-ap.com
42.61.56.82	A+PTR	mail.worldtobaccofree.com
42.61.56.82	PTR	mail.kindness-edu.com
42.61.56.91	A+PTR	mail.elimchurch.org.sg
42.61.56.93	A	mail-srv17.elimchurch.org.sg
42.61.56.130	A	www.olympus-ost.com
42.61.56.203	A	tmgssoft.com
42.61.56.203	A	mx.tmgssoft.com
42.61.56.203	A	n8team.com
42.61.57.101	A	itownsg.com
42.61.57.102	A	www.nxxiems.com
42.61.57.102	A	nxxiems.com
42.61.58.56	A	smtp.skylineluge.com
42.61.58.56	A	mail.skylineluge.com
42.61.58.56	A	autodiscover.skylineluge.com
42.61.58.252	A	mail.wat2eat.com
42.61.58.252	A	svr1.icellnetwork.com
42.61.59.34	PTR	firewall.oraclelaw.sg
42.61.59.34	A	www.sinopayonline.com
42.61.59.36	A	www.bpintl.com
42.61.59.37	A	sinocuptxn.com
42.61.59.37	A	cuptxn.com
42.61.59.48	A	mail.artisansofvalue.com
42.61.59.50	A	mail.mindfulwealth.com
42.61.59.50	A	mail.a2s.sg
42.61.59.50	A	mail.lextray.sg
42.61.59.52	PTR	mail.a2s.sg
42.61.59.219	A	ssgtestlab.com
42.61.59.249	A+PTR	mail.tom.sg
42.61.59.249	PTR	www.tom.sg
42.61.59.250	A	tom.sg
42.61.59.250	A	www.tom.sg
42.61.60.3	PTR	mail.nikbra.com
42.61.60.3	A+PTR	mail.whf-sg.com
42.61.60.3	A+PTR	mail.gtfareast.com
42.61.60.58	A	c3msgroup.com
42.61.60.60	A	c3.com.sg
42.61.60.60	A	www.c3.com.sg
42.61.60.76	PTR	ns.erlins.com
42.61.60.76	A	3wisesolutions.com
42.61.60.76	A	charis.sg
42.61.60.77	PTR	s1.sgsip.com
42.61.61.115	A+PTR	mail.mhwang.com
42.61.61.213	A	sppas.sembenviroparking.com
42.61.61.218	A	mail.ramky.com.sg
42.61.62.38	PTR	incus.krugerasia.com
42.61.62.38	A	mail.krugerasia.com
42.61.62.121	A	ychgroup.ych.com
42.61.62.158	PTR	relay.sghrsvc.com
42.61.62.205	A	www.pantropic.com.sg
42.61.62.227	A	mail.masterpro.com.sg
42.61.62.228	A	safetyfit.sg
42.61.63.20	A	mail.epicentreshopping.com
42.61.63.21	A	mail.epicentreshopping.com
42.61.63.34	A	mail.cocoandfrank.com.sg
42.61.63.34	A	mail.go2mart.com
42.61.63.35	A	mail.wellmart.com.sg
42.61.63.36	A	www.go2mart.com
42.61.63.67	A+PTR	mail.falkor.com.sg
42.61.63.163	A	email.cloudradigm.com
42.61.63.163	A	email.cloudradigm.net
42.61.63.163	A	email.cloudradigm.org
42.61.63.172	PTR	mail.hyundaiwelding.com.sg