Robtex

Up: 195.208.172.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 195.208.172.0/25
Down right: 195.208.172.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
195.208.172.0	PTR	nat-v7.mt-3.natanet.ru
195.208.172.21	PTR	ns2-old.natanet.ru
195.208.172.103	PTR	20-32.pppoe-nat-pool.mon.natanet.ru
195.208.172.104	PTR	104.pool-0.natanet.ru
195.208.172.107	PTR	72-6.pppoe-nat.s-1.natanet.ru
195.208.172.163	A	gb1nvrsk.ru
195.208.172.199	A	mail.botrans-novo.com
195.208.172.199	A	mail.libertyshippingltd.com
195.208.172.199	A	mail.globalocean.ru
195.208.172.200	A+PTR	ns1.natanet.ru
195.208.172.200	A	ns4.natanet.ru
195.208.172.201	PTR	natanet.ru
195.208.172.206	A+PTR	post1.nego.ru
195.208.172.250	A	ns1.gwhost.online
195.208.172.250	A	gamedevpc.com
195.208.172.250	A	trenirovka.tk
195.208.172.254	PTR	72-22.pppoe-nat.s-1.natanet.ru