Robtex

Up: 182.72.6.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.6.0/25
Down right: 182.72.6.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.6.10	A	stdcablenet.com
182.72.6.118	PTR	nsg-static-118.6.72.182.airtel.in
182.72.6.136	PTR	nsg-static-136.6.72.182.airtel.in
182.72.6.138	A+PTR	mail.mazars.in
182.72.6.138	A	mail.mazdainfotech.com
182.72.6.138	A	mail.km.co.in