Robtex

Up: 217.23.176.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 217.23.176.0/24
Down right: 217.23.177.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.23.176.1	A+PTR	ns.tattelecom.ru
217.23.176.1	A	ns1.letay.tv
217.23.176.1	A	ns1.letai.tv
217.23.176.7	PTR	new.tattelecom.ru
217.23.176.12	PTR	kukzmp.ru
217.23.176.12	PTR	tatmail.ru
217.23.176.12	PTR	www.kukzmp.ru
217.23.176.22	A+PTR	dproxy.tattelecom.ru
217.23.176.34	PTR	rex400.kazan.ru
217.23.176.101	PTR	mail.tattelecom.ru
217.23.176.101	A	smtp.tattelecom.ru
217.23.176.101	A	asito.tattelecom.ru
217.23.176.114	A+PTR	zabbix.tattelecom.ru
217.23.176.138	A	nc.pager.tattelecom.ru
217.23.176.151	A+PTR	ntp1.tattelecom.ru
217.23.176.230	A	proxy.tattelecom.ru
217.23.176.234	PTR	mail.tattelecom.ru
217.23.176.234	A	forumcs.tattelecom.ru
217.23.177.249	A+PTR	ns2.tattelecom.ru
217.23.177.249	A	ns2.tattele.com
217.23.177.249	A	ns2.tatmvdcamera.ru
217.23.177.250	A	tatstat.tatmail.ru
217.23.177.251	A	mrtg.tattelecom.ru