Robtex

Up: 123.231.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 123.231.0.0/18
Down right: 123.231.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.231.0.9	PTR	isg.dialogbb.net
123.231.0.33	A+PTR	isg.dialogbb.net
123.231.0.75	A+PTR	mailgw.dialogsl.net
123.231.0.75	PTR	trend5.dialogsl.net.0.231.123.in-addr.arpa
123.231.0.76	A	mailgw.dialogsl.net
123.231.0.156	A+PTR	ldap.dialogbb.com
123.231.0.156	PTR	mail.ualink.lk
123.231.0.163	A	visionlinkmedia.lk
123.231.0.166	PTR	mx2.dialogbb.net
123.231.0.166	A	mailmx2.dialogbb.net
123.231.0.166	A	mx3.dialogbb.net
123.231.0.167	PTR	dns2.dialog.lk
123.231.4.5	A+PTR	ms1.broadnet.lk
123.231.4.8	A	ms2.broadnet.lk
123.231.4.11	A+PTR	ns1.broadnet.lk
123.231.4.14	A+PTR	ns2.broadnet.lk
123.231.5.11	A	mx4.dialogbb.com
123.231.5.25	A+PTR	sgw1.dialogbb.com
123.231.5.25	A	mbb.dialog.lk
123.231.5.26	A+PTR	sgw1.dialogbb.com
123.231.5.33	A	dialoglive.lk
123.231.5.100	A	www.colomboconsultants.com
123.231.5.130	A+PTR	spamgtw01.dialog.lk
123.231.5.130	A	forti1.dialogsl.net
123.231.5.139	A	pop.dialogsl.net
123.231.5.141	A	iron1.dialognet.lk
123.231.6.18	A+PTR	d.nic.lk
123.231.6.18	A	ns-d.nic.lk
123.231.6.67	A	mail.mihinlanka.com
123.231.6.123	A	spamlog.dialog.lk
123.231.8.82	A	teardrop-island.com
123.231.8.105	A	venus.adsuk.net
123.231.8.197	A	laebuy.com
123.231.9.37	A	mail1.starboxes.in
123.231.9.37	A	mail1.starpackaging.biz
123.231.9.89	PTR	office.lakpura.com
123.231.9.109	A	rainfallsrilanka.com
123.231.10.127	A	heraths.com
123.231.10.127	A	cecar.org
123.231.11.135	A+PTR	mmm.linklanka.lk
123.231.11.228	A	iwshris.com
123.231.12.23	A	lomapa.nl
123.231.12.23	A	mail.lomapa.nl
123.231.12.51	A+PTR	mails.fjgdesaram.com
123.231.12.80	A	mail3.dmslanka.com
123.231.12.133	A+PTR	mail2.natwealth.com
123.231.12.143	A	politics.lk
123.231.12.143	A	mail.garments.lk
123.231.12.143	A	mail.voiz.lk
123.231.12.187	PTR	mailgw.sicl.lk
123.231.13.10	A+PTR	mail.maritimecmb.com
123.231.13.10	A	maritimecmb.com
123.231.13.134	A	jlanka.enetlk.com
123.231.13.146	A	mac000e53ed827f.ddns.eagleeyes.tw
123.231.14.13	A	waternet.lk
123.231.14.13	A	www.warisoba.lk
123.231.14.13	A	warisoba.lk
123.231.14.73	PTR	mails.fjgdesaram.lk
123.231.14.218	A	mail3.fpasrilanka.org
123.231.16.2	PTR	spamwall.sathsindu.com.lk
123.231.16.6	PTR	mailrelay.travelclub.com.lk
123.231.16.6	A	travelclub.com.lk
123.231.16.145	PTR	mail.tassgroup.lk
123.231.16.145	A	relay.ebaseasia.net
123.231.16.192	PTR	mx1.metalanka.com
123.231.16.217	A	gallopstrading.com
123.231.16.217	A	mail.gallopstrading.com
123.231.16.243	A	mail1.sankenoverseas.com
123.231.17.28	A+PTR	mail.milinda.org
123.231.17.38	A	golflk.mobi
123.231.17.38	A	wavenet.mobi
123.231.17.38	A	*.mcricket.mobi
123.231.17.138	PTR	mail.coffeebean.lk
123.231.17.167	PTR	mail.openarc.lk
123.231.17.167	A	nethsarana.com
123.231.17.167	A	unisets.com
123.231.18.35	PTR	mail.tcct.lk
123.231.18.49	A	mail.nic.lk
123.231.18.49	A	wwwb.techcert.lk
123.231.18.49	A	ccb.nic.lk
123.231.18.66	PTR	gateway.providenceglobal.com.18.231.123.in-addr.arpa
123.231.18.135	A+PTR	tcct-ex2k10-01.tcct.lk
123.231.18.135	A	mail.tcct.lk
123.231.18.135	A	tcct.lk
123.231.18.206	A	mail.ebonyholdings.com
123.231.18.208	PTR	ebaseasia.net
123.231.18.208	PTR	mail.ebaseasia.com
123.231.18.208	PTR	mail.gpshippingltd.com
123.231.20.17	A+PTR	mail.bates.lk
123.231.20.94	A	mail.arctech.lk
123.231.20.109	A	mail1.adsintranet.com
123.231.20.208	A	mail.dbg.lk
123.231.20.215	A	www.prontolanka.lk
123.231.20.215	A	mail.prontolanka.lk
123.231.20.254	A	mail06.eureka.lk
123.231.21.4	A+PTR	tux.kandysoftsl.com
123.231.21.13	A	mail.mmblgroup.com
123.231.21.27	A	kayjaysite.tk
123.231.21.67	A	mail2.barberyn.lk
123.231.21.143	A+PTR	mail.jobsnet.lk
123.231.21.143	A	www.jobsnet.lk
123.231.21.143	A	jobsnet.lk
123.231.21.160	PTR	mail.efcolombo.com
123.231.21.160	PTR	mail.newasialines.lk
123.231.21.161	PTR	mail.efcolombo.com
123.231.22.7	PTR	mail.unitedholidays.lk
123.231.22.23	A	mail.bimputhfinance.com
123.231.22.100	A	mail.tristar.org
123.231.22.161	A	mail.durteksails.com
123.231.22.186	PTR	mail.barclays.lk
123.231.22.207	A	mail2.teatang.com
123.231.22.207	A	hostmaster.teatang.com
123.231.22.207	A	*.teatang.com
123.231.23.7	PTR	server.eflyer.lk
123.231.23.42	PTR	mail.agstaragri.com
123.231.23.42	A	www.agstaragri.com
123.231.23.185	PTR	isp.unitedholidays.lk
123.231.23.238	A+PTR	mails.antlergroup.com
123.231.24.11	A	www.singer.lk
123.231.24.11	A	www.singersl.com
123.231.24.11	A	singer.lk
123.231.24.12	A	singerfinance.com
123.231.24.146	A	voicelogs.dialog.lk
123.231.25.101	A	mail2.satextile.com
123.231.25.213	PTR	mail.embellish-store.com
123.231.30.118	A	lankaclear.lk
123.231.33.225	A	apps.sltb.lk
123.231.36.2	PTR	ormail1.dialogsl.net
123.231.36.4	PTR	gateway4.startpoints.lk
123.231.36.4	A	gateway4.starpoints.lk
123.231.36.5	A+PTR	mailer1.ibuy.lk
123.231.36.5	A	mx0.ibuy.lk
123.231.36.6	A	mailer1.dialogaxiata.lk
123.231.39.181	A	guru.lk
123.231.39.181	A	www.youlead.lk
123.231.39.181	A	www.guru.lk
123.231.44.111	A	mail.mreach.info
123.231.44.153	A	mail.ceylonteabrokers.com
123.231.44.206	A	ctsat.tk
123.231.44.207	A	happylife.lk
123.231.44.241	A	mail.sarasavi.org
123.231.45.47	A	mail.prontolanka.lk
123.231.45.54	A	mailstore.medsource.lk
123.231.45.175	A	boughtleaf.com
123.231.45.179	A	constructionlk.com
123.231.45.216	A	encryptionitsolutions.com
123.231.45.238	A	sgic.lk
123.231.47.110	A	www.goodyear.lk
123.231.47.110	A	datsun.lk
123.231.47.110	A	automall.lk
123.231.49.100	A	ns2.seylan.lk
123.231.52.12	A	ns2.peoplesbank.lk
123.231.52.107	A	mail03.cict.lk
123.231.54.10	PTR	exchange02.dsitp.com
123.231.54.10	A	exchange02.dsiitp.com
123.231.55.50	A	sectelprortnc.com
123.231.55.53	A	sectel-rtnc.com
123.231.55.122	A	email.lankaclear.com
123.231.55.187	A	messenger.sfml.lk
123.231.56.188	A	adhub.lk
123.231.56.188	A	www.adhub.lk
123.231.58.156	A	eservices.slpost.gov.lk
123.231.59.181	A	submit.nic.lk
123.231.62.251	A	aespleng.com
123.231.64.60	A	mail.touchwood.com
123.231.64.142	A	ipg.dialog.lk
123.231.64.171	PTR	relay1.abansgroup.com
123.231.64.174	A	www.aze.lk
123.231.64.178	A	mail.crysbro.net
123.231.64.182	A	mail1.crysbro.net
123.231.65.36	PTR	mail.lankaputhra.lk
123.231.65.36	A	lankaputhra.lk
123.231.65.50	A+PTR	mail.jayjaymills.lk
123.231.65.51	A+PTR	mail.twinstar.lk
123.231.65.51	A	www.twinstar.lk
123.231.65.170	PTR	tplmailserver.thermosl.com
123.231.65.173	A	ltentp1.dialog.lk
123.231.65.173	A	u3dstudios.com
123.231.66.11	A	iata-agents.lk
123.231.66.11	A	www.galileo.lk
123.231.66.11	A	www.iata-agents.lk
123.231.66.84	PTR	mail.thinkcube.com
123.231.66.180	A+PTR	mail.qualitea.lk
123.231.66.194	A	www.fame.lk
123.231.66.194	A	fame.ualink.lk
123.231.66.194	A	fame.lk
123.231.67.98	A	allapps.mobi
123.231.68.26	A	ns2.ndbbank.com
123.231.68.28	A	www.ndbbankonline.com
123.231.68.67	PTR	mail.wavenet.lk
123.231.68.82	PTR	katrina.wavenet.lk
123.231.68.126	A	mx3.hnbgeneral.com
123.231.68.178	PTR	mail.ifpl.lk
123.231.68.178	A	mx-123-231-68-178.ifpl.lk
123.231.69.3	A	a.obdfriokl.org
123.231.69.28	A	mail.ups.lk
123.231.69.122	A	mail2.cmlmtd.net
123.231.69.122	A	mail2.mtdwalkers.com
123.231.69.196	A	mail.wnl.lk
123.231.69.196	A	mail1.wijeya.lk
123.231.69.196	A	mail1.deshaya.lk
123.231.70.10	A	lhdworld.lk
123.231.70.44	A+PTR	mail.spgov.lk
123.231.70.117	A	www.colomboconsultants.com
123.231.70.117	A	colomboconsultants.com
123.231.71.195	A	mailserver.multi-chem.com
123.231.71.203	A+PTR	mail.nobles.lk
123.231.72.148	PTR	mailserver.nlp.lk
123.231.72.180	A	mail2.goodhope-lk.com
123.231.73.29	A	trc.gov.lk
123.231.73.29	A	www.trc.gov.lk
123.231.73.126	A	zabbix.mytaxi.lk
123.231.73.180	A	ns3.cambio.lk
123.231.73.218	A	lyncdiscover.masholdings.com
123.231.73.243	A+PTR	drmail.cse.lk
123.231.73.244	A	drmail.cse.lk
123.231.74.30	A	ns1.amgcoder.com
123.231.74.30	A	ns2.amgcoder.com
123.231.74.195	A	aneclub.com
123.231.75.21	A	www.sliate.ac.lk
123.231.75.21	A	sliate.ac.lk
123.231.75.68	PTR	mail.nipponpaint.com.lk
123.231.75.84	A	autodiscover.eflkenya.com
123.231.75.84	A	autodiscover.lankapremierfoods.com
123.231.79.44	A	learntv.lk
123.231.79.44	A	vhec.lk
123.231.79.44	A	metta.lk
123.231.79.45	A	metta.lk
123.231.87.31	A	logiventures.dyndns.org
123.231.88.101	A	citrix.ifsworld.com
123.231.90.115	A	erp.dpg.lk
123.231.90.180	A	pwc.lk
123.231.90.180	A	www.pwc.lk
123.231.90.214	PTR	mailrelay.unitedmotors.lk
123.231.90.214	A	mail.unitedmotors.lk
123.231.93.40	A+PTR	mail1.newanthoneys.lk
123.231.94.2	A	winsitepm.com
123.231.95.93	A	gensoftmail.com
123.231.95.153	A	lkdeals.lk
123.231.97.41	A	micropclk.com
123.231.106.49	A	nanobizcloud.com
123.231.108.34	A	nanosoftservers.com
123.231.111.227	A	emtlanka.com
123.231.112.45	A	budgettaxilk.com
123.231.112.51	A	mail.masteellanka.com
123.231.112.51	A	mail.ceylonsteel.com
123.231.112.130	A	mail.ebaseasia.com
123.231.113.17	A+PTR	mail.sierra.com.lk
123.231.113.17	A	sierra.com.lk
123.231.113.147	A	smartmetroapp.com
123.231.114.143	PTR	mail1.unitedco.ae
123.231.114.143	PTR	mail1.estwst.com
123.231.114.143	PTR	mail1.stjhcompany.com
123.231.114.166	A+PTR	mail.seyacolor.com
123.231.114.166	A	seyacolor.com
123.231.116.20	A	acs.sampath.lk
123.231.116.98	A	afraymond.lk
123.231.116.166	PTR	mailgate3.aepona.com
123.231.116.166	A	dns4.aepona.com
123.231.117.129	A	sip.masholdings.com
123.231.117.131	A	av.masholdings.com
123.231.117.153	A	www.forbestea.com
123.231.117.153	A	valdhuewalker.com
123.231.118.38	PTR	drmail.brandix.com
123.231.118.48	A	ec.brandix.com
123.231.118.154	A	gateway6.dialogaxiata.lk
123.231.118.156	A+PTR	gateway1.dialogsurvey.lk
123.231.119.122	A	mail.lanmic.com
123.231.120.142	A	samix.myds.me
123.231.120.222	A	mail.harshawij.com
123.231.120.232	A	keplercontainers.com
123.231.121.17	A	sclaptopsl.com
123.231.121.142	A	www.tradehub.lk
123.231.121.232	A	c42f909f4c46.nyxdns.com
123.231.122.167	A	harshawij.com
123.231.125.31	A	gallecctv.com
123.231.126.208	A	mymac.dyndns-web.com
123.231.127.5	A	connectme.tk
123.231.127.29	A	gitsol.net
123.231.127.29	A	www.gitsol.net
123.231.127.235	A	forum.dialogbb.net