Robtex

Up: 103.19.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 103.19.56.0/23
Down right: 103.19.58.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
103.19.56.2	A+PTR	ns1.bits.net.id
103.19.56.2	A	ns1.tikicbn.com
103.19.56.2	A	ns1.bitsnet.co.id
103.19.56.3	PTR	ns2.bits.net.id
103.19.56.4	PTR	cp.bitsnet.id
103.19.56.4	A	loomandso.com
103.19.56.4	A	bitsnet.co.id
103.19.56.5	PTR	host-56-5.bitsnet.co.id
103.19.56.7	PTR	db.bitsnet.id
103.19.56.8	A	zimbra.bitsnet.id
103.19.56.9	PTR	host-56-9.bitsnet.co.id
103.19.56.9	A	ns3.bits.net.id
103.19.56.10	A	ns3.bitsnet.id
103.19.56.11	A	ns4.bitsnet.id
103.19.56.193	PTR	host-56-193.bitsnet.co.id
103.19.56.193	A	mail.taikisha.co.id
103.19.56.193	A	taikisha.co.id
103.19.56.225	PTR	host-56-225.bits.net.id
103.19.57.26	PTR	host-57-26.bitsnet.co.id
103.19.57.26	A	tikicbn.com
103.19.57.78	PTR	host-57-78.bitsnet.co.id
103.19.57.117	PTR	host-57-117.bits.net.id
103.19.57.130	A	birms.bandung.go.id
103.19.57.142	PTR	host-57-142.bitsnet.co.id
103.19.57.154	PTR	host-57-154.bits.net.id
103.19.57.162	A	fingerhebat.com
103.19.57.169	PTR	host-57-169.bitsnet.co.id
103.19.57.169	A	www.karantinaonline.com
103.19.57.169	A	ns2.karantinabandung.org
103.19.57.182	PTR	host-57-182.bitsnet.co.id
103.19.57.182	A	ns1.karantinabandung.org
103.19.57.186	A	ns2.freedomhosting.net
103.19.57.186	A	ns1.freedomhosting.net
103.19.57.187	PTR	host-57-187.bitsnet.id
103.19.57.187	A	komunitasmapayleuweung.com
103.19.57.187	A	ns1.komunitasmapayleuweung.com
103.19.57.197	A	bem.fkunswagati.ac.id
103.19.58.8	PTR	host-58-8.bitsnet.id
103.19.58.9	PTR	host-58-9.bits.net.id
103.19.58.17	PTR	host-58-17.bitsnet.id
103.19.58.17	A	ekinerja.tulungagung.go.id
103.19.58.17	A	presensi.tulungagung.go.id
103.19.58.51	A	elearning.sman1boyolangu.sch.id
103.19.58.162	PTR	host-58-162.bitsnet.id
103.19.58.162	A	dprd.jabarprov.go.id
103.19.59.10	PTR	host-59-10.bitsnet.co.id
103.19.59.20	PTR	host-59-20.bitsnet.co.id
103.19.59.20	A	sdngranget.sch.id
103.19.59.20	A	smp1geger.sch.id
103.19.59.82	PTR	host-59-82.bitsnet.co.id
103.19.59.82	A	butikkhonza.com
103.19.59.82	A	dilmil-madiun.go.id
103.19.59.85	PTR	host-59-85.bitsnet.co.id
103.19.59.126	PTR	host-59-126.bitsnet.co.id
103.19.59.190	PTR	host-59-190.bitsnet.co.id
103.19.59.245	PTR	host-59-245.bits.net.id