Robtex

Up: 182.72.104.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.108.0/23
Down right: 182.72.110.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.108.33	PTR	nsg-static-033.108.72.182.airtel.in
182.72.108.98	PTR	nsg-static-098.108.72.182.airtel.in
182.72.108.102	PTR	nsg-static-102.108.72.182.airtel.in
182.72.108.144	PTR	nsg-static-144.108.72.182.airtel.in
182.72.108.166	PTR	nsg-static-166.108.72.182.airtel.in
182.72.108.171	PTR	nsg-static-171.108.72.182.airtel.in
182.72.108.171	A	mail.ipfonline.com
182.72.108.172	PTR	mx.ipfonline.com
182.72.108.172	A	mail.ipfonline.com
182.72.108.173	A	ipfevents.com
182.72.108.173	A	mail.ipfevents.com
182.72.108.174	A+PTR	mail.bypd.in
182.72.108.180	A+PTR	mail.medmemeindia.com
182.72.108.180	A	www.medmemeindia.com
182.72.108.180	A	webmail.medmemeindia.com
182.72.109.74	A	mx.pgidrives.com
182.72.109.162	PTR	nsg-static-162.109.72.182.airtel.in
182.72.110.1	PTR	nsg-static-001.110.72.182.airtel.in
182.72.111.18	PTR	nsg-static-018.111.72.182.airtel.in
182.72.111.34	PTR	nsg-static-034.111.72.182.airtel.in
182.72.111.89	PTR	nsg-static-089.111.72.182.airtel.in
182.72.111.212	A+PTR	mail.tropicalagro.com
182.72.111.212	A+PTR	tropicalagro.com
182.72.111.212	PTR	www.tropicalagro.com
182.72.111.246	PTR	nsg-static-246.111.72.182.airtel.in