Robtex

Up: 203.153.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.153.212.0/23
Down right: 203.153.214.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.153.213.38	A	smtp.logicoms.com
203.153.213.38	A	mail.logicoms.com
203.153.213.38	A	logicoms.com
203.153.214.94	A	ns1.e-kotatebingtinggi.com
203.153.214.94	A	mail.dsikitakita.cf
203.153.214.94	A	ns1.dsikitakita.cf
203.153.214.165	A+PTR	ns1.ptpn3.co.id
203.153.214.166	A+PTR	ns2.ptpn3.co.id
203.153.214.167	A+PTR	email.ptpn3.co.id
203.153.214.168	A+PTR	mail.ptpn3.co.id
203.153.214.171	PTR	host-153-214-171.asn.net.id
203.153.214.171	A	www.seimangkeisez.com
203.153.214.242	PTR	host-153-214-242.asn.net.id
203.153.214.242	A	host.centerpulsa.org
203.153.214.242	A	centerpulsa.org
203.153.215.18	A	www.ptpn3.co.id
203.153.215.162	PTR	smtp.asn.net.id
203.153.215.164	A	mail.infocom.co.id
203.153.215.165	PTR	ns1.asn.net.id
203.153.215.165	A	ns1.logicoms.com
203.153.215.165	A	anekasignal.net.id
203.153.215.166	PTR	ns2.asn.net.id
203.153.215.166	A	mail.infocom.co.id
203.153.215.167	PTR	ns3.asn.net.id
203.153.215.167	A	asn.net.id
203.153.215.168	PTR	ns2.asn.net.id
203.153.215.168	A	ns4.anekasignal.net.id
203.153.215.168	A	ns4.infocom.co.id
203.153.215.172	A	smtp.asn.net.id
203.153.215.197	A+PTR	ns1.asn.net.id
203.153.215.197	A	anekasignal.net.id
203.153.215.197	A	asn.net.id
203.153.215.198	PTR	postmaster.asn.net.id
203.153.215.199	A	asn.net.id
203.153.215.200	A	smtp.infocom.co.id
203.153.215.200	A	ns4.anekasignal.net.id
203.153.215.200	A	ns4.infocom.co.id