Robtex

Up: 223.31.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 223.31.224.0/20
Down right: 223.31.240.0/20

IP	Type	Hostname
223.31.225.194	A+PTR	mail1.objectfrontier.in
223.31.225.203	A	sangam.objectfrontier.com
223.31.230.193	A	mail.khadims.com
223.31.230.197	A	toc.khadims.com
223.31.237.67	A+PTR	technasmtp1.hpl.co.in
223.31.238.116	A+PTR	smtp.dvc.gov.in
223.31.238.117	A	mail.dvc.gov.in
223.31.238.120	A	dvc.gov.in
223.31.238.125	A	damodar.dvcindia.org
223.31.240.51	A	mobileshareindia.com
223.31.240.241	A+PTR	mail1.pnb.co.in
223.31.240.242	A+PTR	mail3.pnb.co.in
223.31.240.244	PTR	pnb.in
223.31.240.244	PTR	autodiscover.pnb.co.in
223.31.240.244	A	www.pnb.in
223.31.244.58	A+PTR	mailserver2.timesofmoney.com
223.31.244.207	PTR	223-30-0-0.lan.sify.net
223.31.244.221	A	www.grpbpcl.co.in
223.31.244.221	A	grpbpcl.co.in
223.31.244.225	A	dns4.bpc.co.in
223.31.244.232	A	efp.bpcl.in
223.31.245.33	A+PTR	webmail.amwasia.com