Robtex

Up: 182.72.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.16.0/23
Down right: 182.72.18.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.16.36	A	bricknet.in
182.72.16.82	PTR	nsg-static-082.16.72.182.airtel.in
182.72.16.83	PTR	nsg-static-083.16.72.182.airtel.in
182.72.16.84	PTR	nsg-static-084.16.72.182.airtel.in
182.72.16.126	PTR	nsg-static-126.16.72.182.airtel.in
182.72.16.130	PTR	nsg-static-130.16.72.182.airtel.in
182.72.16.196	A	jade.ws
182.72.16.196	A	www.jade.ws
182.72.16.249	PTR	nsg-static-249.16.72.182.airtel.in
182.72.17.2	PTR	nsg-static-002.17.72.182.airtel.in
182.72.17.27	PTR	nsg-static-027.17.72.182.airtel.in
182.72.17.100	A	dealsdray.net
182.72.17.100	A	dealsdray.in
182.72.17.100	A	ns1.dealsdray.in
182.72.17.178	PTR	nsg-static-178.17.72.182.airtel.in
182.72.17.182	PTR	nsg-static-182.17.72.182.airtel.in
182.72.17.182	A	ns.complwyrs.net
182.72.17.186	PTR	nsg-static-186.17.72.182.airtel.in
182.72.17.202	PTR	webmail.sparkline.co.in
182.72.17.203	A+PTR	mail.sparkline.co.in
182.72.17.210	PTR	email.1and1.com
182.72.18.149	A	smtp.ccidcdev.org
182.72.18.149	A	ccidcdev.org
182.72.18.167	A+PTR	mail.leonindia.com
182.72.18.167	PTR	mail.leon.co.in
182.72.18.169	PTR	nsg-static-169.18.72.182.airtel.in
182.72.18.169	A	lotusevent.in
182.72.18.169	A	zpeclustergundegaon.org
182.72.18.171	PTR	nsg-static-171.18.72.182.airtel.in
182.72.18.171	A	www.leon.co.in
182.72.18.171	A	leon.co.in
182.72.18.191	PTR	nsg-static-191.18.72.182.airtel.in
182.72.19.130	PTR	nsg-static-130.19.72.182.airtel.in
182.72.19.130	A	www.firstpolicy.com
182.72.19.130	A	firstpolicy.com