Robtex

Up: 182.72.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.0.0/22
Down right: 182.72.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.0.1	PTR	nsg-static-001.0.72.182.airtel.in
182.72.0.3	PTR	nsg-static-003.0.72.182.airtel.in
182.72.0.8	PTR	nsg-static-008.0.72.182.airtel.in
182.72.0.50	PTR	nsg-static-050.0.72.182.airtel.in
182.72.0.50	A	services.osourceindia.com
182.72.0.55	A	onexsoftware.com
182.72.0.74	PTR	nsg-static-074.0.72.182.airtel.in
182.72.0.84	A	zimbra.enemnostrum.com
182.72.0.89	PTR	nsg-static-089.0.72.182.airtel.in
182.72.0.99	PTR	nsg-static-099.0.72.182.airtel.in
182.72.0.114	PTR	nsg-static-114.0.72.182.airtel.in
182.72.0.139	PTR	nsg-static-139.0.72.182.airtel.in
182.72.0.152	PTR	nsg-static-152.0.72.182.airtel.in
182.72.0.200	PTR	nsg-static-200.0.72.182.airtel.in
182.72.0.201	PTR	nsg-static-201.0.72.182.airtel.in
182.72.0.240	PTR	nsg-static-240.0.72.182.airtel.in
182.72.0.251	PTR	nsg-static-251.0.72.182.airtel.in
182.72.1.1	PTR	nsg-static-001.1.72.182.airtel.in
182.72.1.2	PTR	nsg-static-002.1.72.182.airtel.in
182.72.1.3	PTR	nsg-static-003.1.72.182.airtel.in
182.72.1.34	PTR	nsg-static-034.1.72.182.airtel.in
182.72.1.49	PTR	nsg-static-049.1.72.182.airtel.in
182.72.1.64	PTR	nsg-static-064.1.72.182.airtel.in
182.72.1.65	PTR	nsg-static-065.1.72.182.airtel.in
182.72.1.82	PTR	nsg-static-082.1.72.182.airtel.in
182.72.1.89	PTR	nsg-static-089.1.72.182.airtel.in
182.72.1.93	A	livesecure.website
182.72.1.93	A	www.livesecure.site
182.72.1.93	A	livesecure.site
182.72.1.98	PTR	nsg-static-098.1.72.182.airtel.in
182.72.1.105	PTR	nsg-static-105.1.72.182.airtel.in
182.72.1.114	PTR	geninsindia.com
182.72.1.114	PTR	mail.geninsindia.com
182.72.1.128	PTR	nsg-static-128.1.72.182.airtel.in
182.72.1.130	A	kruplmail.krahejauniversal.com
182.72.1.131	A+PTR	webmail.krahejauniversal.com
182.72.1.131	A	webmail.rahejauniversal.com
182.72.1.132	A	mail1.krahejaindia.com
182.72.1.176	PTR	nsg-static-176.1.72.182.airtel.in
182.72.1.185	PTR	nsg-static-185.1.72.182.airtel.in
182.72.1.187	PTR	nsg-static-187.1.72.182.airtel.in
182.72.1.195	PTR	nsg-static-195.1.72.182.airtel.in
182.72.1.200	PTR	nsg-static-200.1.72.182.airtel.in
182.72.1.242	PTR	nsg-static-242.1.72.182.airtel.in
182.72.1.249	PTR	nsg-static-249.1.72.182.airtel.in
182.72.1.254	A	ledevenirp.us
182.72.2.2	PTR	nsg-static-002.2.72.182.airtel.in
182.72.2.16	PTR	nsg-static-016.2.72.182.airtel.in
182.72.2.32	PTR	nsg-static-032.2.72.182.airtel.in
182.72.2.34	PTR	nsg-static-034.2.72.182.airtel.in
182.72.2.35	PTR	nsg-static-035.2.72.182.airtel.in
182.72.2.66	PTR	nsg-static-066.2.72.182.airtel.in
182.72.2.81	PTR	nsg-static-081.2.72.182.airtel.in
182.72.2.81	A	www.kmdastur.com
182.72.2.81	A	kmdastur.com
182.72.2.82	A+PTR	mumbai.kmdastur.com
182.72.2.184	PTR	nsg-static-184.2.72.182.airtel.in
182.72.2.185	PTR	nsg-static-185.2.72.182.airtel.in
182.72.2.202	PTR	nsg-static-202.2.72.182.airtel.in
182.72.2.210	PTR	nsg-static-210.2.72.182.airtel.in
182.72.2.224	PTR	nsg-static-224.2.72.182.airtel.in
182.72.2.240	PTR	nsg-static-240.2.72.182.airtel.in
182.72.3.10	PTR	nsg-static-010.3.72.182.airtel.in
182.72.3.10	A	mx4.askinvestmentmanagers.com
182.72.3.10	A	mx4.askfinancials.com
182.72.3.11	PTR	nsg-static-011.3.72.182.airtel.in
182.72.3.42	PTR	mscindia.in
182.72.3.42	PTR	inddom02.com
182.72.3.42	PTR	mscindia.com
182.72.3.48	PTR	nsg-static-048.3.72.182.airtel.in
182.72.3.50	A	kruplmail.rahejauniversal.com
182.72.3.51	A	webmail.krahejauniversal.com
182.72.3.52	A	mail1.krahejaindia.com
182.72.3.52	A	mail1.krahejauniversal.com
182.72.3.52	A	mymail.rahejauniversal.com
182.72.3.90	PTR	nsg-static-090.3.72.182.airtel.in
182.72.3.91	PTR	nsg-static-091.3.72.182.airtel.in
182.72.3.114	PTR	nsg-static-114.3.72.182.airtel.in
182.72.3.128	PTR	nsg-static-128.3.72.182.airtel.in
182.72.3.162	PTR	mail1.halomediaworks.com
182.72.3.162	PTR	halomediaworks.com
182.72.3.162	PTR	mail.jaincotech.com
182.72.3.165	A	mail5.proimageeditors.co.uk
182.72.3.169	PTR	nsg-static-169.3.72.182.airtel.in
182.72.3.187	PTR	nsg-static-187.3.72.182.airtel.in
182.72.3.235	PTR	nsg-static-235.3.72.182.airtel.in
182.72.3.247	A	mail.indeus.in
182.72.4.2	PTR	nsg-static-002.4.72.182.airtel.in
182.72.4.27	PTR	mail.samyagbroking.com
182.72.4.44	A	younify.allieddigital.net
182.72.4.186	A+PTR	mail.aclcables.com
182.72.4.203	A	blobcity.us
182.72.4.203	A	jalloshinfomatix.com
182.72.4.241	PTR	east.smtp.exch028.serverdata.net
182.72.4.241	PTR	west.smtp.exch028.serverdata.net
182.72.4.251	PTR	jmjgroup.co.in
182.72.5.73	PTR	taskseveryday.com
182.72.5.73	PTR	ns5.secureserver.net
182.72.5.73	PTR	smtpout.secureserver.net
182.72.5.74	PTR	taskseveryday.com
182.72.5.74	PTR	ns5.secureserver.net
182.72.5.74	PTR	smtpout.secureserver.net
182.72.5.75	PTR	taskseveryday.com
182.72.5.75	PTR	ns5.secureserver.net
182.72.5.75	PTR	smtpout.secureserver.net
182.72.5.85	A	mail1.silgate.cc
182.72.5.98	PTR	nsg-static-098.5.72.182.airtel.in
182.72.5.190	A	epmnext.com
182.72.5.197	A	mail.elp-in.com
182.72.5.203	PTR	nsg-static-203.5.72.182.airtel.in
182.72.5.203	A	mail.sempertransnirlon.com
182.72.6.10	A	stdcablenet.com
182.72.6.136	PTR	nsg-static-136.6.72.182.airtel.in
182.72.6.138	A+PTR	mail.mazars.in
182.72.6.138	A	mail.mazdainfotech.com
182.72.6.138	A	mail.km.co.in
182.72.7.19	PTR	nsg-static-019.7.72.182.airtel.in
182.72.7.19	A	connectplex.com
182.72.7.21	A	qsoftwarejobs.com
182.72.7.29	A	bom1.upstox.in
182.72.7.100	A	marol.hclinsys.com
182.72.7.106	A	dhirajrokade.ml
182.72.7.121	A+PTR	ohcschemexch01.ohcs.in
182.72.7.130	PTR	nsg-static-130.7.72.182.airtel.in