Robtex

Up: 212.6.10.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.6.10.0/25
Down right: 212.6.10.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.6.10.10	A	mail.31-13-00.xn--p1ai
212.6.10.10	A	31-13-00.xn--p1ai
212.6.10.10	A	311-300.xn--p1ai
212.6.10.74	A	ns1.mail.homelane.ru
212.6.10.74	A	mail.mail.homelane.ru
212.6.10.74	A	mail.mail.homelane.me