Robtex

Up: 125.17.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 125.17.72.0/23
Down right: 125.17.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
125.17.73.2	A	chennaiisvpn.tcs.com
125.17.73.221	A	apphonics.tcs.com
125.17.75.6	PTR	msa006.managedbiz.net
125.17.75.6	A	mx1.muthoothonda.com
125.17.75.6	A	mx1.muthoot.com
125.17.75.7	PTR	msa007.managedbiz.net
125.17.75.17	PTR	msa017.managedbiz.net
125.17.75.17	A	8n8.in
125.17.75.22	A+PTR	msairbb.mxout.managedbiz.com
125.17.75.24	A+PTR	msairbd.mxout.managedbiz.com
125.17.75.26	PTR	msairbf.mxout.managedbiz.com
125.17.75.26	A	mx11.managedbiz.net
125.17.75.186	PTR	msa186.managedbiz.net