Robtex

Up: 195.133.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 195.133.216.0/23
Down right: 195.133.218.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
195.133.216.2	A	ns1.webkupol.ru
195.133.216.2	A	ns1.vemail.ru
195.133.216.9	A+PTR	smtp.vemail.ru
195.133.216.10	A+PTR	195-133-216-10.in-addr.mastertelecom.ru
195.133.216.10	A	webkupol.ru
195.133.216.62	PTR	195-133-216-62.in-addr.mastertelecom.ru
195.133.216.62	A	ns2.webkupol.ru
195.133.216.62	A	ns2.vemail.ru
195.133.216.66	A	mail1.ru.ntt.com
195.133.216.77	A	mail.sysadministrators.com
195.133.216.83	A	mail.agri.ru
195.133.216.98	A	fw3.efko.ru
195.133.216.102	A+PTR	195-133-216-102.in-addr.mastertelecom.ru
195.133.216.102	A	xn--j1aiq9a.xn--p1ai
195.133.216.114	A+PTR	195-133-216-114.in-addr.mastertelecom.ru
195.133.216.114	A	cartoo.ru
195.133.216.120	PTR	195-133-216-120.in-addr.mastertelecom.ru
195.133.216.124	A	mx1.benefitbank.ru
195.133.216.195	A+PTR	195-133-216-195.in-addr.mastertelecom.ru
195.133.216.195	A	uspex-team.org
195.133.216.215	A+PTR	195-133-216-215.in-addr.mastertelecom.ru
195.133.217.3	PTR	195-133-217-3.in-addr.mastertelecom.ru
195.133.217.3	A	mail2.aremz1.ru
195.133.217.18	A	mail.aremz1.ru
195.133.217.18	A	nii-cement.com
195.133.217.18	A	xn----jtbaja0acg9b9a.xn--p1ai
195.133.217.34	A	8tv.ru
195.133.217.38	PTR	195-133-217-38.in-addr.mastertelecom.ru
195.133.217.38	A	www.8tv.ru
195.133.217.94	PTR	195-133-217-94.in-addr.mastertelecom.ru
195.133.217.94	A	relay.mvis.ru
195.133.217.94	A	relay.reclama-expo.ru
195.133.217.140	PTR	195-133-217-140.in-addr.mastertelecom.ru
195.133.217.140	A	securitycode.ru
195.133.217.140	A	www.securitycode.ru
195.133.217.141	PTR	195-133-217-141.in-addr.mastertelecom.ru
195.133.217.141	A	trustverse-dispatcher.trafficmanager.net
195.133.217.141	A	trustverse.ru
195.133.217.143	PTR	msk-mailedge.securitycode.ru
195.133.217.144	A+PTR	msk-sendmail01.securitycode.ru
195.133.217.165	PTR	195-133-217-165.in-addr.mastertelecom.ru
195.133.217.165	A	mskspbbalancer.trafficmanager.net
195.133.217.183	PTR	195-133-217-183.in-addr.mastertelecom.ru
195.133.217.183	A	iwbanag.com
195.133.217.189	A	securitycode.ru
195.133.217.209	PTR	195-133-217-209.in-addr.mastertelecom.ru
195.133.217.214	PTR	195-133-217-214.in-addr.mastertelecom.ru
195.133.218.79	PTR	195-133-218-79.in-addr.mastertelecom.ru
195.133.218.79	A	mstuca.ru
195.133.218.79	A	www.mstuca.ru
195.133.219.91	A	update.drweb.com
195.133.219.91	A	download.geo.drweb.com
195.133.219.91	A	online.drweb.com
195.133.219.93	A	update.drweb.com
195.133.219.93	A	download.geo.drweb.com
195.133.219.93	A	online.drweb.com