Robtex

Up: 124.30.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 124.30.81.0/25
Down right: 124.30.81.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
124.30.81.11	PTR	segment-124-30.sify.net
124.30.81.28	PTR	segment-124-30.sify.net
124.30.81.33	PTR	segment-124-30.sify.net
124.30.81.37	PTR	segment-124-30.sify.net
124.30.81.79	PTR	segment-124-30.sify.net
124.30.81.97	PTR	segment-124-30.sify.net
124.30.81.103	PTR	segment-124-30.sify.net
124.30.81.107	PTR	segment-124-30.sify.net
124.30.81.108	PTR	segment-124-30.sify.net
124.30.81.115	PTR	segment-124-30.sify.net
124.30.81.126	PTR	segment-124-30.sify.net
124.30.81.134	PTR	segment-124-30.sify.net
124.30.81.150	PTR	segment-124-30.sify.net
124.30.81.163	PTR	segment-124-30.sify.net
124.30.81.165	PTR	segment-124-30.sify.net
124.30.81.220	PTR	segment-124-30.sify.net
124.30.81.226	PTR	segment-124-30.sify.net
124.30.81.226	A	server.dialmadurai.com
124.30.81.227	PTR	mail.shriramepc.com
124.30.81.227	A	mx1.shriramleitner.com
124.30.81.227	A	ns2.ggss.co.in
124.30.81.228	A+PTR	primary.shriramepc.com
124.30.81.228	A	ns1.punjabnewsline.com
124.30.81.228	A	www.umeedonline.com
124.30.81.229	PTR	secondary.shriramepc.com
124.30.81.229	A	ns4.webhostingkpi.com
124.30.81.244	PTR	segment-124-30.sify.net