Robtex

Up: 182.72.14.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.15.0/25
Down right: 182.72.15.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.15.9	PTR	nsg-static-009.15.72.182.airtel.in
182.72.15.60	PTR	nsg-static-060.15.72.182.airtel.in
182.72.15.99	PTR	nsg-static-099.15.72.182.airtel.in
182.72.15.137	PTR	fpaindia.org
182.72.15.138	PTR	fpaindia.org
182.72.15.138	A+PTR	mail.fpaindia.org
182.72.15.139	PTR	fpaindia.org
182.72.15.140	PTR	fpaindia.org
182.72.15.141	PTR	fpaindia.org
182.72.15.142	PTR	fpaindia.org
182.72.15.162	PTR	mail1.soft-techinfosystems.com
182.72.15.162	A	mail.rrmc-navnitmotors.in
182.72.15.162	A	mail.shreenathmotors.com
182.72.15.163	PTR	nsg-static-163.15.72.182.airtel.in
182.72.15.164	PTR	mail1.soft-techinfosystems.com
182.72.15.182	PTR	nsg-static-182.15.72.182.airtel.in