Robtex

Up: 212.12.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.12.17.0/25
Down right: 212.12.17.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.12.17.0	PTR	rev-0-17-12-212.tula.net
212.12.17.8	PTR	rev-8-17-12-212.tula.net
212.12.17.8	A	www.extra-prof.ru
212.12.17.8	A	spetsexpert.ru
212.12.17.62	PTR	rev-62-17-12-212.tula.net
212.12.17.65	PTR	rev-65-17-12-212.tula.net
212.12.17.65	A	ns1.servicecraft.ru
212.12.17.65	A	ns1.gentoo.uz
212.12.17.71	A+PTR	mail.broken047.org
212.12.17.71	A	broken047.org
212.12.17.100	A	document-servis.ru
212.12.17.153	PTR	rev-153-17-12-212.tula.net
212.12.17.153	A	mail.mrt-nm.ru
212.12.17.153	A	www.klad-anapa.ru
212.12.17.201	PTR	rev-201-17-12-212.tula.net
212.12.17.201	A	mishsoft.ru
212.12.17.201	A	ns1.mishsoft.ru
212.12.17.219	PTR	rev-219-17-12-212.tula.net
212.12.17.255	PTR	rev-255-17-12-212.tula.net