Robtex

Up: 182.71.10.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 182.71.11.0/25
Down right: 182.71.11.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.71.11.3	PTR	nsg-static-003.11.71.182.airtel.in
182.71.11.5	PTR	nsg-static-005.11.71.182.airtel.in
182.71.11.8	PTR	nsg-static-008.11.71.182.airtel.in
182.71.11.19	PTR	nsg-static-019.11.71.182.airtel.in
182.71.11.21	PTR	nsg-static-021.11.71.182.airtel.in
182.71.11.31	PTR	nsg-static-031.11.71.182.airtel.in
182.71.11.38	PTR	nsg-static-038.11.71.182.airtel.in
182.71.11.48	PTR	nsg-static-048.11.71.182.airtel.in
182.71.11.50	PTR	nsg-static-050.11.71.182.airtel.in
182.71.11.52	PTR	nsg-static-052.11.71.182.airtel.in
182.71.11.62	PTR	nsg-static-062.11.71.182.airtel.in
182.71.11.77	A	mail.focusimaging.co.in
182.71.11.87	PTR	nsg-static-087.11.71.182.airtel.in
182.71.11.90	PTR	nsg-static-090.11.71.182.airtel.in
182.71.11.93	PTR	nsg-static-093.11.71.182.airtel.in
182.71.11.94	PTR	nsg-static-094.11.71.182.airtel.in
182.71.11.103	PTR	nsg-static-103.11.71.182.airtel.in
182.71.11.106	PTR	mail.sisindia.com
182.71.11.108	PTR	nsg-static-108.11.71.182.airtel.in
182.71.11.114	PTR	computerware.in
182.71.11.119	PTR	nsg-static-119.11.71.182.airtel.in
182.71.11.121	PTR	nsg-static-121.11.71.182.airtel.in
182.71.11.128	PTR	nsg-static-128.11.71.182.airtel.in
182.71.11.132	PTR	nsg-static-132.11.71.182.airtel.in
182.71.11.138	PTR	nsg-static-138.11.71.182.airtel.in
182.71.11.140	PTR	nsg-static-140.11.71.182.airtel.in
182.71.11.143	PTR	nsg-static-143.11.71.182.airtel.in
182.71.11.148	PTR	nsg-static-148.11.71.182.airtel.in
182.71.11.178	PTR	webmail.grpuohca.com
182.71.11.187	A	mail.ilfsecosmart.com
182.71.11.202	PTR	fslmx01.freightsystems.com
182.71.11.202	PTR	fslmx02.freightsystems.com
182.71.11.214	PTR	nsg-static-214.11.71.182.airtel.in
182.71.11.223	PTR	nsg-static-223.11.71.182.airtel.in
182.71.11.224	PTR	nsg-static-224.11.71.182.airtel.in
182.71.11.230	PTR	nsg-static-230.11.71.182.airtel.in
182.71.11.232	PTR	nsg-static-232.11.71.182.airtel.in
182.71.11.252	A+PTR	shekhal.springtravels.com
182.71.11.253	PTR	webmail.springtravels.com
182.71.11.253	PTR	mail.gaffarmobiles.com
182.71.11.253	A	springtravelsap.com