Robtex

Up: 125.19.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 125.19.16.0/22
Down right: 125.19.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
125.19.16.202	A	swaraup.gov.in
125.19.17.6	PTR	imss.bharti.com
125.19.17.6	A+PTR	imss.airtel.in
125.19.17.6	A+PTR	mx2.airtel.lk
125.19.17.9	A+PTR	appsmailgw.airtel.in
125.19.17.10	A+PTR	northmailgw.airtel.in
125.19.17.13	A	vpn.airtel.in
125.19.17.13	A	workfromhome.airtel.in
125.19.17.14	PTR	secureportal.airtel.in
125.19.17.19	PTR	smtp.airtel-vodafone.gg
125.19.17.19	PTR	smtp.airtel-vodafone.je
125.19.17.20	A+PTR	www.airtel-broadband.com
125.19.17.20	PTR	www.airtelenterprise.com
125.19.17.20	PTR	www.airtellive.com
125.19.17.21	PTR	mb.airtel.in
125.19.17.22	PTR	marketingimages.airtel.in
125.19.17.37	PTR	www.airtelbank.com
125.19.17.37	A	ecom.airtelbank.com
125.19.17.38	A	portal.airtelbank.com
125.19.17.39	A	retailerapp.airtelbank.com
125.19.17.46	A	smartapi.airtel.in
125.19.17.48	A	tms.airtelbroadband.in
125.19.17.51	A	www.airteltez.com
125.19.17.69	A	emdub2b.airtel.in
125.19.17.97	A	scooby.airtel.in
125.19.18.34	PTR	1nbox.net
125.19.19.50	PTR	dlfgroup.in
125.19.19.74	A	smtp.concorindia.com
125.19.19.82	PTR	server.incometax.gov.in
125.19.19.82	A	webmail.incometax.gov.in
125.19.19.83	PTR	mail.incometaxindiaefiling.gov.in
125.19.19.84	A+PTR	mail.incometaxindia.gov.in
125.19.19.84	A	pdcsmtp02.incometax.gov.in
125.19.19.86	A	pextdnsv01.incometax.gov.in
125.19.19.88	PTR	mail.incometaxindiaefiling.gov.in
125.19.20.2	PTR	email.geoenpro.com
125.19.20.2	PTR	geoenpro.geoenpro.com
125.19.20.2	PTR	gepl.geoenpro.com
125.19.20.7	A	xchange.geoenpro.com
125.19.20.18	PTR	mail.lexisnexis.co.in
125.19.20.20	A	mail.lexisnexis.co.in
125.19.20.132	A	therealtors.co.in
125.19.20.143	A	xenin.in.gsc.huawei.com
125.19.20.143	A	xenin.gsc.huawei.com
125.19.20.147	A	mailinmx.gsc.huawei.com
125.19.20.150	A	owsme.gsc.huawei.com
125.19.20.153	A	owssas.gsc.huawei.com
125.19.20.196	A	smctradeonline.com
125.19.20.198	A	trade.smcindiaonline.com
125.19.21.71	PTR	smtpdelhi.petronetlng.com
125.19.21.126	A	practicebuildersemail.net
125.19.21.209	A	pnbnet.co.in
125.19.21.209	A	www.pnbnet.co.in
125.19.21.212	A	onlinepnb.in
125.19.21.222	A	onlinepnbglobal.com
125.19.21.222	A	www.onlinepnbglobal.com
125.19.23.84	PTR	mymail.eragroup.in
125.19.23.178	A	mtx01.nrl.co.in
125.19.23.179	A	ns3.nrl.co.in
125.19.23.182	A	www.nrl.co.in
125.19.23.188	PTR	mtx02.nrl.co.in
125.19.23.188	A	nrl.co.in
125.19.23.195	PTR	timesgroup.com