Robtex

Up: 5.140.164.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 5.140.165.0/25
Down right: 5.140.165.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.140.165.36	PTR	dsl-5-140-165-36.permonline.ru
5.140.165.44	PTR	dsl-5-140-165-44.permonline.ru
5.140.165.44	A	xmini.mmdl.ru
5.140.165.51	PTR	dsl-5-140-165-51.permonline.ru
5.140.165.96	PTR	dsl-5-140-165-96.permonline.ru
5.140.165.98	PTR	vprmz.rempm.ru
5.140.165.102	PTR	dsl-5-140-165-102.permonline.ru
5.140.165.134	PTR	dsl-5-140-165-134.permonline.ru
5.140.165.141	PTR	yug.perm.ru
5.140.165.143	PTR	dsl-5-140-165-143.permonline.ru
5.140.165.153	A	mail.tbk-energo.su
5.140.165.159	PTR	dsl-5-140-165-159.permonline.ru
5.140.165.171	PTR	mail.krizol.com
5.140.165.174	PTR	mail.sdpp.ru
5.140.165.174	A	sdpp.ru
5.140.165.174	A	luxlogic.ru
5.140.165.187	A+PTR	mail.kaskadgroup.com
5.140.165.187	A	mail.kaskadstroy.com
5.140.165.187	A	mail.olmiks.ru
5.140.165.190	PTR	dsl-5-140-165-190.permonline.ru
5.140.165.206	PTR	dsl-5-140-165-206.permonline.ru
5.140.165.206	A	rtcom.bf.pstu.ru
5.140.165.223	PTR	dsl-5-140-165-223.permonline.ru
5.140.165.232	PTR	volgawolga.ru
5.140.165.232	A	mail.insputnik.ru
5.140.165.232	A	www.volgawolga.ru
5.140.165.244	PTR	dsl-5-140-165-244.permonline.ru
5.140.165.244	A	speleobase.com