Robtex

Up: 61.8.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.8.136.0/23
Down right: 61.8.138.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.8.136.1	PTR	kopran.com
61.8.136.1	PTR	kop.kopran.com
61.8.136.44	PTR	dtserver.spjimr.org
61.8.136.44	A	dtserver.spjimr.ernet.in
61.8.136.195	PTR	mxmurbad.technocraftgroup.com
61.8.136.195	A	lbg-india.com
61.8.136.195	A	luxurybrandsgroup.com
61.8.136.214	A	ess.anchorglobal.net
61.8.136.217	PTR	search4india.com
61.8.136.233	PTR	dns9.parkpage.foundationapi.com
61.8.136.233	A	ns1.arcadiabackoffice.com
61.8.136.233	A	ns1.arcadiastock.com
61.8.137.13	A	mail2.jsw.in
61.8.137.18	PTR	sys9.vibes.in
61.8.137.37	PTR	euclid1.tendersinfo.com
61.8.137.91	PTR	itgurussoftware.com
61.8.137.91	A	dealsouthere.com
61.8.137.91	A	itgurussoft.com
61.8.137.98	A+PTR	pandey.flora2000.com
61.8.137.134	A	omsteelsolutions.com
61.8.137.161	A	mail4.goloffshore.com
61.8.138.6	A	mail2.greatoffshore.com
61.8.138.163	PTR	mail.vibes.in
61.8.138.170	PTR	sys2.vibes.in
61.8.139.2	PTR	mail.yashrajfilms.com
61.8.139.4	A	yashrajfilms.info
61.8.139.14	A+PTR	firewall.yashrajfilms.com
61.8.139.82	A	mail.bombaydyeing.com
61.8.139.120	PTR	mx3.mahfin.com
61.8.139.120	PTR	mahfin.com
61.8.139.146	A	shribalajicapital.in
61.8.139.166	A+PTR	smtp.shreepatiholdings.com