Robtex

Up: 221.121.134.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 221.121.135.0/25
Down right: 221.121.135.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
221.121.135.3	PTR	vl3.sw-13-1.as45671.net.au
221.121.135.3	A	dc-204.ptoserver.com
221.121.135.21	PTR	sau-1e363-or.servercontrol.com.au
221.121.135.21	A	saevia.com
221.121.135.41	PTR	221-121-135-41.as45671.net
221.121.135.41	A	dc-0366f8493de0.nzclassics.com
221.121.135.51	PTR	sau-e94ef-or.servercontrol.com.au
221.121.135.51	A	dc-440.ptoserver.com
221.121.135.68	PTR	221-121-135-68.as45671.net
221.121.135.107	PTR	sau-3914e-or.servercontrol.com.au
221.121.135.107	A	kickofnorris.com
221.121.135.108	PTR	sau-3914e-or.servercontrol.com.au
221.121.135.115	A+PTR	free.venus.akl.nz.youhost.co.nz
221.121.135.115	A	freehosting.co.nz
221.121.135.115	A	jamievong.com
221.121.135.116	A+PTR	paid.venus.akl.nz.youhost.co.nz
221.121.135.116	A	mail.onpointae.nz
221.121.135.116	A	cherryvista.co.nz
221.121.135.131	PTR	221-121-135-131.as45671.net
221.121.135.143	PTR	221-121-135-143.as45671.net