Robtex

Up: 210.18.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.18.68.0/23
Down right: 210.18.70.0/23

IP	Type	Hostname
210.18.68.99	PTR	sil.alokind.com
210.18.68.100	PTR	210.18.68.100.sify.net
210.18.68.118	A	firewall.cenrayon.com
210.18.68.130	A	210.18.68.130.sify.net
210.18.68.226	PTR	www.alokind.com
210.18.68.227	PTR	www.alokind.com
210.18.68.228	PTR	www.alokind.com
210.18.71.84	PTR	210.18.71.84.sify.net
210.18.71.226	PTR	210.18.71.226.sify.net
210.18.71.226	A	listserv.eim.ac.in