Robtex

Up: 221.135.138.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 221.135.139.0/25
Down right: 221.135.139.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
221.135.139.43	PTR	221-135-139-43.sify.net
221.135.139.43	A	agspartner.com
221.135.139.44	PTR	221-135-139-44.sify.net
221.135.139.66	A	vpn.saharaqshop.com
221.135.139.70	PTR	www.saharaqshop.com
221.135.139.100	PTR	221-135-139-100.sify.net
221.135.139.108	A	www.bytzsoft.in
221.135.139.109	A	bytzsoft.net
221.135.139.115	PTR	221-135-139-115.sify.net
221.135.139.115	A	studyebuddy.com
221.135.139.122	PTR	221-135-139-122.sify.net
221.135.139.137	PTR	221-135-139-137.sify.net
221.135.139.137	A	coruscant.co.in
221.135.139.138	A	naxworld.com
221.135.139.138	A	www.naxworld.com
221.135.139.146	PTR	221-135-139-146.sify.net
221.135.139.146	A	ncpacc.in
221.135.139.146	A	www.palavacity.in
221.135.139.147	PTR	221-135-139-147.sify.net
221.135.139.147	A	lodhameridianhyderabad.co.in
221.135.139.150	PTR	mail1.alltimeit.com
221.135.139.150	A	alltimeit.com
221.135.139.152	PTR	221-135-139-152.sify.net
221.135.139.152	A	altis.co.in
221.135.139.154	PTR	221-135-139-154.sify.net
221.135.139.201	PTR	221-135-139-201.sify.net
221.135.139.201	A	zee.esselgroup.com
221.135.139.252	PTR	221-135-139-252.sify.net
221.135.139.253	PTR	221-135-139-253.sify.net
221.135.139.253	A	mx3.agsindia.com
221.135.139.254	PTR	221-135-139-254.sify.net
221.135.139.254	A	mx4.agsindia.com