Robtex

Up: 203.123.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.123.32.0/25
Down right: 203.123.32.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.123.32.0	PTR	pool-203.123.32.rev.spectranet.in
203.123.32.20	PTR	203.123.32.20.reverse.spectranet.in
203.123.32.126	A	flightcatchers.co.in
203.123.32.179	A+PTR	mx1.tenonservices.com
203.123.32.179	A	mx1.soteria.in
203.123.32.179	A	mx1.morticegroup.com
203.123.32.210	PTR	203.123.32.210.reverse.spectranet.in
203.123.32.242	PTR	203.123.32.242.reverse.spectranet.in
203.123.32.243	PTR	203.123.32.243.reverse.spectranet.in