Robtex

Up: 125.23.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 125.23.20.0/23
Down right: 125.23.22.0/23

IP	Type	Hostname
125.23.21.189	PTR	dsl-ncr-dynamic-189.21.23.125.airtelbroadband.in
125.23.23.92	PTR	dsl-ncr-dynamic-092.23.23.125.airtelbroadband.in
125.23.23.123	PTR	dsl-ncr-dynamic-123.23.23.125.airtelbroadband.in