Robtex

Up: 217.174.212.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 217.174.214.0/24
Down right: 217.174.215.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.174.215.18	PTR	mail.i2.b01.02.message-business.net.215.174.217.in-addr.arpa
217.174.215.38	PTR	mail.i2.b02.06.message-business.net.215.174.217.in-addr.arpa
217.174.215.41	PTR	mail.i2.b02.09.message-business.net.215.174.217.in-addr.arpa
217.174.215.66	PTR	mail.i2.b04.02.message-business.net.215.174.217.in-addr.arpa
217.174.215.94	A	smtp.toutlecine.com
217.174.215.94	A	pop.toutlecine.com
217.174.215.95	A	mail.toutlecine.com
217.174.215.102	PTR	mail.i2.b06.06.message-business.net.215.174.217.in-addr.arpa
217.174.215.132	PTR	mail.i2.b08.04.message-business.net.215.174.217.in-addr.arpa
217.174.215.160	PTR	mail.i2.b10.00.message-business.net.215.174.217.in-addr.arpa
217.174.215.167	PTR	mail.i2.b10.07.message-business.net.215.174.217.in-addr.arpa
217.174.215.192	PTR	mail.i2.b12.00.message-business.net.215.174.217.in-addr.arpa
217.174.215.220	PTR	mail.i2.b13.12.message-business.net.215.174.217.in-addr.arpa
217.174.215.220	A	blogorilla.de
217.174.215.220	A	t-bloggospace.de
217.174.215.223	PTR	mail.i2.b13.15.message-business.net.215.174.217.in-addr.arpa
217.174.215.237	PTR	mail.i2.b14.13.message-business.net.215.174.217.in-addr.arpa