Robtex

Up: 182.71.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.71.68.0/23
Down right: 182.71.70.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.71.68.14	PTR	nsg-static-014.68.71.182.airtel.in
182.71.68.14	A	mail2.tecprosystems.com
182.71.68.51	PTR	webmail.planet-pci.com
182.71.68.51	PTR	webmail.prime-pci.com
182.71.68.51	PTR	email.riello-pci.com
182.71.68.52	A	sathyainfo.net
182.71.68.53	PTR	nsg-static-053.68.71.182.airtel.in
182.71.68.53	A	mail.lsacademia.com
182.71.68.53	A	lsacademia.com
182.71.68.54	PTR	nsg-static-054.68.71.182.airtel.in
182.71.68.54	A	*.afgji.org
182.71.68.58	A+PTR	mail.lsnet.in
182.71.68.58	A	lsnet.in
182.71.68.59	PTR	nsg-static-059.68.71.182.airtel.in
182.71.68.59	A	mail.libsys.co.in
182.71.68.60	PTR	nsg-static-060.68.71.182.airtel.in
182.71.68.60	A	mail.lstech.co.in
182.71.68.67	PTR	nsg-static-067.68.71.182.airtel.in
182.71.68.75	A	preplansurgery.com
182.71.68.102	PTR	nsg-static-102.68.71.182.airtel.in
182.71.68.235	PTR	nsg-static-235.68.71.182.airtel.in
182.71.68.238	PTR	nsg-static-238.68.71.182.airtel.in
182.71.68.238	A	mail.irdsa.com
182.71.69.4	PTR	nsg-static-004.69.71.182.airtel.in
182.71.69.14	PTR	nsg-static-014.69.71.182.airtel.in
182.71.69.16	PTR	nsg-static-016.69.71.182.airtel.in
182.71.69.17	PTR	bulbulhotels.com
182.71.69.23	PTR	nsg-static-023.69.71.182.airtel.in
182.71.69.32	PTR	nsg-static-032.69.71.182.airtel.in
182.71.69.37	PTR	nsg-static-037.69.71.182.airtel.in
182.71.69.45	PTR	nsg-static-045.69.71.182.airtel.in
182.71.69.52	PTR	nsg-static-052.69.71.182.airtel.in
182.71.69.53	PTR	nsg-static-053.69.71.182.airtel.in
182.71.69.53	A	mail.celonlabs.com
182.71.69.54	A+PTR	mail.celon.in
182.71.69.58	PTR	nsg-static-058.69.71.182.airtel.in
182.71.69.60	PTR	nsg-static-060.69.71.182.airtel.in
182.71.69.68	PTR	nsg-static-068.69.71.182.airtel.in
182.71.69.71	PTR	nsg-static-071.69.71.182.airtel.in
182.71.69.80	PTR	nsg-static-080.69.71.182.airtel.in
182.71.69.84	PTR	nsg-static-084.69.71.182.airtel.in
182.71.69.87	PTR	nsg-static-087.69.71.182.airtel.in
182.71.69.88	PTR	nsg-static-088.69.71.182.airtel.in
182.71.69.91	PTR	nsg-static-091.69.71.182.airtel.in
182.71.69.99	PTR	nsg-static-099.69.71.182.airtel.in
182.71.69.101	PTR	nsg-static-101.69.71.182.airtel.in
182.71.69.102	PTR	nsg-static-102.69.71.182.airtel.in
182.71.69.104	PTR	nsg-static-104.69.71.182.airtel.in
182.71.69.106	PTR	nsg-static-106.69.71.182.airtel.in
182.71.69.107	PTR	nsg-static-107.69.71.182.airtel.in
182.71.69.110	PTR	nsg-static-110.69.71.182.airtel.in
182.71.69.115	PTR	mail3.hidestination.com
182.71.69.127	PTR	nsg-static-127.69.71.182.airtel.in
182.71.69.135	PTR	nsg-static-135.69.71.182.airtel.in
182.71.69.136	PTR	nsg-static-136.69.71.182.airtel.in
182.71.69.139	PTR	nsg-static-139.69.71.182.airtel.in
182.71.69.140	PTR	nsg-static-140.69.71.182.airtel.in
182.71.69.145	PTR	nsg-static-145.69.71.182.airtel.in
182.71.69.149	PTR	nsg-static-149.69.71.182.airtel.in
182.71.69.161	PTR	nsg-static-161.69.71.182.airtel.in
182.71.69.165	PTR	nsg-static-165.69.71.182.airtel.in
182.71.69.170	PTR	fontuswater.com
182.71.69.171	PTR	fontuswater.com
182.71.69.173	PTR	fontuswater.com
182.71.69.176	PTR	nsg-static-176.69.71.182.airtel.in
182.71.69.182	PTR	nsg-static-182.69.71.182.airtel.in
182.71.69.184	PTR	nsg-static-184.69.71.182.airtel.in
182.71.69.185	PTR	nsg-static-185.69.71.182.airtel.in
182.71.69.187	PTR	nsg-static-187.69.71.182.airtel.in
182.71.69.188	PTR	nsg-static-188.69.71.182.airtel.in
182.71.69.193	PTR	nsg-static-193.69.71.182.airtel.in
182.71.69.195	PTR	nsg-static-195.69.71.182.airtel.in
182.71.69.207	PTR	nsg-static-207.69.71.182.airtel.in
182.71.69.209	PTR	nsg-static-209.69.71.182.airtel.in
182.71.69.215	PTR	nsg-static-215.69.71.182.airtel.in
182.71.69.216	PTR	nsg-static-216.69.71.182.airtel.in
182.71.69.218	A+PTR	mail.hind.in
182.71.69.225	PTR	nsg-static-225.69.71.182.airtel.in
182.71.69.227	PTR	nsg-static-227.69.71.182.airtel.in
182.71.69.230	PTR	nsg-static-230.69.71.182.airtel.in
182.71.69.237	PTR	nsg-static-237.69.71.182.airtel.in
182.71.69.239	PTR	nsg-static-239.69.71.182.airtel.in
182.71.69.240	PTR	nsg-static-240.69.71.182.airtel.in
182.71.69.244	PTR	nsg-static-244.69.71.182.airtel.in
182.71.69.246	PTR	nsg-static-246.69.71.182.airtel.in
182.71.69.247	PTR	nsg-static-247.69.71.182.airtel.in
182.71.69.248	PTR	nsg-static-248.69.71.182.airtel.in
182.71.69.251	PTR	nsg-static-251.69.71.182.airtel.in
182.71.69.252	PTR	nsg-static-252.69.71.182.airtel.in
182.71.70.51	A	skylighttravel.co.uk
182.71.71.102	PTR	nsg-static-102.71.71.182.airtel.in
182.71.71.228	A	mx.aspiringmail.com
182.71.71.250	PTR	nsg-static-250.71.71.182.airtel.in
182.71.71.250	A	buschvpn.com
182.71.71.254	PTR	buschindia.com
182.71.71.254	PTR	busch.it
182.71.71.254	PTR	mailrelay.buschindia.com