Robtex

Up: 91.144.156.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 91.144.158.0/24
Down right: 91.144.159.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.144.158.38	PTR	91x144x158x38.static-customer.chelny.ertelecom.ru
91.144.158.41	PTR	91x144x158x41.static-customer.chelny.ertelecom.ru
91.144.158.42	PTR	91x144x158x42.static-customer.chelny.ertelecom.ru
91.144.158.42	A	joogl.ru
91.144.158.53	PTR	91x144x158x53.static-customer.chelny.ertelecom.ru
91.144.158.60	A	www.wiki-top.ru
91.144.158.60	A	wiki-top.ru
91.144.158.89	PTR	test.ertelecom.ru
91.144.158.89	A	uach.ru
91.144.158.110	PTR	91x144x158x110.static-customer.chelny.ertelecom.ru
91.144.158.114	PTR	91x144x158x114.static-customer.chelny.ertelecom.ru
91.144.158.133	PTR	91x144x158x133.static-business.chelny.ertelecom.ru
91.144.158.144	A	mail.iplast.com
91.144.158.163	A+PTR	mx.npoukd.ru
91.144.158.170	PTR	91x144x158x170.static-business.chelny.ertelecom.ru
91.144.158.218	PTR	91x144x158x218.static-business.chelny.ertelecom.ru
91.144.158.218	A	mfo-rubl.ru
91.144.158.218	A	murtazin-kartina.ru
91.144.159.5	PTR	91x144x159x5.static-business.chelny.ertelecom.ru
91.144.159.5	A	mail.kama-e.ru
91.144.159.17	A+PTR	mail.interkama.ru
91.144.159.17	A	ns1.interkama.ru
91.144.159.17	A	interkama.ru
91.144.159.61	PTR	91x144x159x61.static-business.chelny.ertelecom.ru
91.144.159.61	A	excellent-k.ru
91.144.159.61	A	remdizel.com
91.144.159.102	A+PTR	mail.pkfinsait.ru
91.144.159.102	A	pkfinsait.ru
91.144.159.102	A	www.pkfinsait.ru
91.144.159.145	PTR	91x144x159x145.static-business.chelny.ertelecom.ru
91.144.159.145	A	tat-export.com
91.144.159.145	A	ns.tat-export.com
91.144.159.184	A+PTR	mail.issa.pro
91.144.159.184	A	mail.issaltd.ru
91.144.159.209	PTR	91x144x159x209.static-business.chelny.ertelecom.ru
91.144.159.209	A	razzies.ru
91.144.159.209	A	uezh.ru
91.144.159.226	PTR	91x144x159x226.static-business.chelny.ertelecom.ru
91.144.159.226	A	mail.rostar.biz
91.144.159.226	A	mail3.rostar.biz
91.144.159.255	PTR	91x144x159x255.static-business.chelny.ertelecom.ru