Robtex

Up: 121.240.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.240.72.0/22
Down right: 121.240.76.0/22

IP	Type	Hostname
121.240.72.33	A+PTR	tatacommunication.cohezia.com
121.240.72.165	PTR	sq-gf-it-d4.dskglobaledu.com
121.240.74.66	PTR	vigelindia.com
121.240.74.67	A+PTR	newmail.vigelindia.com
121.240.74.67	A	mail.vigelindia.com
121.240.74.163	A	verifications.kpmg.in
121.240.76.10	PTR	121.240.76.10.static-pune.vsnl.net.in
121.240.76.26	PTR	121.240.76.26.static-pune.vsnl.net.in
121.240.76.40	PTR	121.240.76.40.static-pune.vsnl.net.in
121.240.76.56	PTR	121.240.76.56.static-pune.vsnl.net.in
121.240.76.57	PTR	121.240.76.57.static-pune.vsnl.net.in
121.240.76.81	PTR	121.240.76.81.static-pune.vsnl.net.in
121.240.76.82	PTR	121.240.76.82.static-pune.vsnl.net.in
121.240.76.106	PTR	121.240.76.106.static-pune.vsnl.net.in
121.240.76.115	PTR	121.240.76.115.static-pune.vsnl.net.in
121.240.76.122	PTR	121.240.76.122.static-pune.vsnl.net.in
121.240.76.138	PTR	121.240.76.138.static-pune.vsnl.net.in
121.240.76.152	PTR	121.240.76.152.static-pune.vsnl.net.in
121.240.76.169	PTR	121.240.76.169.static-pune.vsnl.net.in
121.240.76.178	PTR	121.240.76.178.static-pune.vsnl.net.in
121.240.76.187	PTR	121.240.76.187.static-pune.vsnl.net.in
121.240.76.200	PTR	121.240.76.200.static-pune.vsnl.net.in
121.240.76.203	PTR	121.240.76.203.static-pune.vsnl.net.in
121.240.76.227	PTR	121.240.76.227.static-pune.vsnl.net.in
121.240.76.228	A	webmail.dsksigpune.com
121.240.76.233	PTR	121.240.76.233.static-pune.vsnl.net.in
121.240.76.243	PTR	121.240.76.243.static-pune.vsnl.net.in
121.240.79.11	PTR	smtp1.eclerx.com
121.240.79.19	PTR	121.240.79.19.static-pune.vsnl.net.in
121.240.79.19	A	ns1.eclerx.com