Robtex

Up: 203.122.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.122.20.0/23
Down right: 203.122.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.122.20.10	PTR	203.122.20.10.reverse.spectranet.in
203.122.20.131	PTR	cart-cm-a-131.spectranet.com
203.122.20.186	PTR	cart-cm-a-186.spectranet.com
203.122.21.2	PTR	203.122.21.2.reverse.spectranet.in
203.122.21.3	PTR	ns103.planetcast.in
203.122.21.3	A	ns101.planetcast.in
203.122.21.4	PTR	203.122.21.4.reverse.spectranet.in
203.122.21.4	A+PTR	ns101.planetc.net
203.122.21.60	PTR	203.122.21.60.reverse.spectranet.in
203.122.21.60	A	www.planetcast.in
203.122.21.63	PTR	203.122.21.63.reverse.spectranet.in
203.122.21.63	A	planetcast.in
203.122.21.63	A	pitaara.planetcast.in
203.122.21.149	PTR	deconglobalsolutions.com
203.122.21.149	PTR	smtp.deconhost.in
203.122.21.149	PTR	deconindia.com
203.122.21.162	PTR	203.122.21.162.reverse.spectranet.in
203.122.21.162	A	eacketmail.com
203.122.21.168	PTR	203.122.21.168.reverse.spectranet.in
203.122.21.168	A	eacketemail.com
203.122.21.185	PTR	203.122.21.185.reverse.spectranet.in
203.122.21.195	PTR	203.122.21.195.reverse.spectranet.in
203.122.21.195	A	omaxeambrosia.com
203.122.21.195	A	gangafernhill.com
203.122.21.196	PTR	203.122.21.196.reverse.spectranet.in
203.122.21.196	A	lodhaupperthane.org.in
203.122.21.196	A	mahagunmaverick.com
203.122.21.197	PTR	203.122.21.197.reverse.spectranet.in
203.122.21.202	PTR	server2.360prolive.com
203.122.21.202	A	server.360cloud.in
203.122.21.203	A+PTR	server.360cmd.com
203.122.21.203	A	ns2.360cmd.com
203.122.21.203	A	webmail.renaissancecr.com
203.122.22.7	PTR	203.122.22.7.reverse.spectranet.in
203.122.22.27	PTR	mail.icrier.res.in
203.122.22.43	PTR	mail.indiahabitat.in
203.122.22.82	PTR	my.cyberspaceindia.com
203.122.22.234	PTR	203.122.22.234.reverse.spectranet.in
203.122.22.234	A	chat-tftus.com
203.122.23.69	PTR	203.122.23.69.reverse.spectranet.in
203.122.23.92	A	mediakart.com
203.122.23.114	PTR	203.122.23.114.reverse.spectranet.in
203.122.23.172	PTR	smtp.bytechindia.com
203.122.23.180	PTR	kplerp.kplintl.com
203.122.23.214	PTR	203.122.23.214.reverse.spectranet.in