Robtex

Up: 223.30.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 223.30.28.0/23
Down right: 223.30.30.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
223.30.28.82	PTR	segment-223-30.sify.net
223.30.30.62	PTR	segment-223-30.sify.net
223.30.30.110	PTR	segment-223-30.sify.net
223.30.30.178	PTR	segment-223-30.sify.net
223.30.30.202	PTR	segment-223-30.sify.net
223.30.30.226	PTR	segment-223-30.sify.net
223.30.31.106	A	mail.sjihct.in
223.30.31.106	A	www.aldel.in
223.30.31.106	A	www.sjchs.in