Robtex

Up: 81.1.216.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.1.217.0/25
Down right: 81.1.217.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.1.217.34	A	www.cdek-china.com
81.1.217.34	A	cdek-china.com
81.1.217.50	A	sony154.ru
81.1.217.50	A	xn--80adahhjgqjeojbecfhk6c1msc.xn--p1ai
81.1.217.50	A	xn--e1agasfsdfw.xn--p1ai
81.1.217.133	A	autodiscover.eseti.ru
81.1.217.133	A	vpn2.eseti.ru
81.1.217.133	A	webmail.eseti.ru
81.1.217.134	A+PTR	extdns2.eseti.ru
81.1.217.135	A+PTR	mail2.eseti.ru
81.1.217.143	A	webmail.eseti.ru
81.1.217.143	A	vpn.eseti.ru
81.1.217.166	A+PTR	mx2.nsau.edu.ru
81.1.217.167	A	ns2.nsau.edu.ru
81.1.217.167	A	marcweb.nsau.edu.ru
81.1.217.226	A	mail.sibkassy.ru
81.1.217.226	A	mail.souzclimate.ru
81.1.217.226	A	xn--80anjo8a.xn--p1ai
81.1.217.229	A	arsenal-nsk.com
81.1.217.229	A	sib-nsk.ru
81.1.217.229	A	sprp.ru
81.1.217.232	A	serviskart.ru
81.1.217.234	A	www.onestore-nsk.ru
81.1.217.242	A	k-tehnik.ru
81.1.217.244	A	www.leff.ru
81.1.217.253	A	ipv4.ecfard.ru