Robtex

Up: 221.134.138.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 221.134.138.0/25
Down right: 221.134.138.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
221.134.138.2	PTR	221-134-138-2.sify.net
221.134.138.2	A	raniweekly.com
221.134.138.50	PTR	221-134-138-50.sify.net
221.134.138.66	PTR	webmail.supportmail.co.in
221.134.138.66	A	webmail.caconline.in
221.134.138.66	A	webmail.ksfesonline.in
221.134.138.68	PTR	221-134-138-68.sify.net
221.134.138.68	A	pstr.caconline.in
221.134.138.68	A	fpbsi18.ksp-online.in
221.134.138.70	PTR	221-134-138-70.sify.net
221.134.138.70	A	caconline.in
221.134.138.70	A	fsl17.ksp-online.in
221.134.138.72	A+PTR	mail.trsforms.com
221.134.138.72	A	webmail.esekure.in