Robtex

Up: 182.72.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.24.0/23
Down right: 182.72.26.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.24.30	PTR	nsg-static-030.24.72.182.airtel.in
182.72.24.59	PTR	nsg-static-059.24.72.182.airtel.in
182.72.24.138	PTR	nsg-static-138.24.72.182.airtel.in
182.72.24.152	PTR	nsg-static-152.24.72.182.airtel.in
182.72.24.251	A	nushiapp.com
182.72.24.252	PTR	nsg-static-252.24.72.182.airtel.in
182.72.24.252	A	commodityshop.co.in
182.72.24.254	PTR	nsg-static-254.24.72.182.airtel.in
182.72.24.254	A	mailinfo.robokriti.in
182.72.25.90	PTR	nsg-static-090.25.72.182.airtel.in
182.72.25.98	PTR	nsg-static-098.25.72.182.airtel.in
182.72.26.6	PTR	nsg-static-006.26.72.182.airtel.in
182.72.26.41	PTR	nsg-static-041.26.72.182.airtel.in
182.72.26.98	PTR	nsg-static-098.26.72.182.airtel.in
182.72.26.130	PTR	nsg-static-130.26.72.182.airtel.in
182.72.26.138	PTR	get4domain.com
182.72.26.138	PTR	ksmwebmedia.com
182.72.26.138	PTR	mail.get4domain.com
182.72.26.174	PTR	nsg-static-174.26.72.182.airtel.in
182.72.26.210	PTR	nsg-static-210.26.72.182.airtel.in
182.72.26.226	PTR	nsg-static-226.26.72.182.airtel.in
182.72.26.226	A	mail.goodwinindia.in
182.72.26.226	A	mail.goldstarpowders.in
182.72.26.246	PTR	sunsmartglobal.in
182.72.27.58	PTR	nsg-static-058.27.72.182.airtel.in
182.72.27.163	PTR	nsg-static-163.27.72.182.airtel.in
182.72.27.172	PTR	nsg-static-172.27.72.182.airtel.in
182.72.27.216	PTR	nsg-static-216.27.72.182.airtel.in
182.72.27.247	PTR	nsg-static-247.27.72.182.airtel.in