Robtex

Up: 213.228.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 213.228.104.0/22
Down right: 213.228.108.0/22

IP	Type	Hostname
213.228.104.0	PTR	213.228.104.0.ncc.sibirtelecom.ru
213.228.104.62	A	ns1.xfil.ru
213.228.106.27	PTR	ae1.omsk-bras5.sib.ip.rostelecom.ru
213.228.109.18	PTR	ae9.nvsk-rgr5.sib.ip.rostelecom.ru
213.228.110.49	PTR	ae3.krsn-ar1.sib.ip.rostelecom.ru
213.228.111.106	PTR	106.ncc.sibirtelecom.ru
213.228.111.106	A	mail.lanta.kts.ru