Robtex

Up: 123.231.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 123.231.236.0/23
Down right: 123.231.238.0/23

IP	Type	Hostname
123.231.236.2	PTR	satpam.noc.btip-plik.lintasarta.net
123.231.236.2	A	ns.btip-plik.lintasarta.net
123.231.236.4	A	lentera.info
123.231.236.6	A	sysmonuso.net
123.231.236.19	A+PTR	report.mbs.co.id
123.231.236.20	A+PTR	dms.mbs.co.id
123.231.236.21	A	simfoni.mbs.co.id
123.231.236.22	A	mail.mbs.co.id
123.231.236.27	A	mx2.mbs.co.id
123.231.236.35	A+PTR	smtp3b.merapi.net
123.231.236.35	A	smtp3.merapi.net
123.231.236.37	A	merapinet-sv03.merapi.net
123.231.236.37	A	merapinet.com
123.231.236.37	A	dns1.merapinet.com
123.231.236.38	A	dns2.merapinet.com
123.231.236.39	PTR	web-mail.merapi.net
123.231.236.40	A	domino.merapi.net
123.231.236.41	A	merapinet-sv04.merapi.net
123.231.236.42	A+PTR	merapinet-sv07.merapi.net
123.231.236.42	A	smtp1.merapi.net
123.231.236.43	PTR	merapinet-sv08.merapi.net
123.231.236.45	A	www.merapi.net
123.231.236.45	A	new3.merapi.net
123.231.236.46	A	new2.merapi.net
123.231.236.47	PTR	merapi.net
123.231.236.47	A	mail.merapi.net
123.231.236.72	A	www.parazelsus.co.id
123.231.236.72	A	parazelsus.co.id
123.231.236.75	A+PTR	mail.parazelsus.co.id
123.231.236.79	A+PTR	smtp1.metrodrug.id
123.231.236.79	A	mail.pzi.co.id
123.231.236.80	A	paramedicus.com
123.231.236.100	PTR	mail.pt-gbi2.com
123.231.236.100	A	www.bbk.go.id
123.231.236.133	A	ipclogistic.co.id
123.231.236.133	A	www.multiterminal.co.id
123.231.236.133	A	www.ipclogistic.co.id
123.231.236.227	A	radio.umn.ac.id
123.231.236.228	A	tv.umn.ac.id
123.231.236.229	A	www.umn.ac.id
123.231.236.232	A	ns1.umn.ac.id
123.231.236.239	A	www.unimedia.ac.id
123.231.236.244	A	ns01.unimedia.ac.id
123.231.237.20	PTR	smtp.tpkkoja.co.id
123.231.237.20	A	mx1.tpkkoja.co.id
123.231.237.30	PTR	mx1.tpkkoja.co.id
123.231.237.38	A	fped.sohoglobalhealth.com
123.231.237.39	A	pip.sohogroup.com
123.231.237.84	PTR	smtp82.medcoenergi.com
123.231.237.87	PTR	smtp8.medcoenergi.com
123.231.237.131	A	simpadu.umi.ac.id
123.231.237.202	PTR	mail.ppsdma.bpsdm.dephub.go.id
123.231.238.100	PTR	mail.permatabank.co.id
123.231.238.100	A	mail.bankpermata.com
123.231.238.186	A	smtp.dpr.go.id
123.231.239.0	PTR	cache.google.com
123.231.239.12	PTR	cache.google.com
123.231.239.15	PTR	cache.google.com
123.231.239.251	A	wsn.idola.net.id
123.231.239.254	A	support.idola.net.id