Robtex

Up: 221.135.136.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 221.135.137.0/25
Down right: 221.135.137.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
221.135.137.139	PTR	221-135-137-139.sify.net
221.135.137.146	PTR	221-135-137-146.sify.net
221.135.137.146	A	health-total.co.in
221.135.137.146	A	skincare-ht.com
221.135.137.179	PTR	mail.exchangesrv.com
221.135.137.184	A+PTR	linux184.p41.in
221.135.137.184	A	trine.co.in
221.135.137.185	A+PTR	p41.in
221.135.137.185	A	www.naughtybhabi.com
221.135.137.202	PTR	221-135-137-202.sify.net
221.135.137.202	A	staarkit.net
221.135.137.202	A	spykarlifestyles.com
221.135.137.203	PTR	www.spykarmails.com
221.135.137.226	PTR	221-135-137-226.sify.net
221.135.137.254	PTR	221-135-137-254.sify.net