Robtex

Up: 5.140.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 5.140.212.0/23
Down right: 5.140.214.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.140.212.30	A+PTR	mail.investperm.ru
5.140.212.49	PTR	dsl-5-140-212-49.permonline.ru
5.140.212.49	A	heabeons.com
5.140.212.61	A+PTR	relay.uralpb.ru
5.140.212.61	A	uralpb.ru
5.140.212.61	A	www.uralpb.ru
5.140.212.63	PTR	dsl-5-140-212-63.permonline.ru
5.140.212.63	A	edgsiond.com
5.140.212.134	A	aria-company.info
5.140.212.134	A	athena.aria-company.info
5.140.212.139	A+PTR	mail.6msch59.ru
5.140.212.139	A	pop.6msch59.ru
5.140.212.139	A	6msch59.ru
5.140.212.143	PTR	dsl-5-140-212-143.permonline.ru
5.140.212.143	A	inkomus.ru
5.140.212.143	A	incomus.ru
5.140.212.169	PTR	dsl-5-140-212-169.permonline.ru
5.140.212.204	PTR	dsl-5-140-212-204.permonline.ru
5.140.212.204	A	dgsionfe.com
5.140.212.222	PTR	vovasm.ru
5.140.213.19	PTR	5-140-213-19.static-adsl.isurgut.ru
5.140.213.38	PTR	5-140-213-38.static-adsl.isurgut.ru
5.140.213.38	A	konstshop.ru
5.140.213.55	PTR	5-140-213-55.static-adsl.isurgut.ru
5.140.213.81	A	mx.surgut-elektra.ru
5.140.213.101	PTR	5-140-213-101.static-adsl.isurgut.ru
5.140.213.106	A	mx.surgut-elektra.ru
5.140.213.108	PTR	5-140-213-108.static-adsl.isurgut.ru
5.140.213.108	A	k86.urai.ru
5.140.213.108	A	ukb.urai.ru
5.140.213.130	PTR	5-140-213-130.static-adsl.isurgut.ru
5.140.213.130	A	bik-local.ru
5.140.213.131	PTR	5-140-213-131.static-adsl.isurgut.ru
5.140.213.131	A	xn--80aaifcvhg3ccn6c.xn--p1ai
5.140.213.153	PTR	5-140-213-153.static-adsl.isurgut.ru
5.140.213.177	PTR	5-140-213-177.static-adsl.isurgut.ru
5.140.213.196	PTR	5-140-213-196.static-adsl.isurgut.ru
5.140.213.196	A	brizo.info
5.140.213.232	PTR	5-140-213-232.static-adsl.isurgut.ru
5.140.213.249	PTR	5-140-213-249.static-adsl.isurgut.ru