Robtex

Up: 212.224.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.224.28.0/25
Down right: 212.224.28.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.224.28.4	PTR	a-212-224-28-4.easynet.de
212.224.28.24	PTR	a-212-224-28-24.easynet.de
212.224.28.91	PTR	a-212-224-28-91.easynet.de
212.224.28.118	A	mail.eillestee.de
212.224.28.118	A	mail.xocao.org
212.224.28.118	A	mail.idee.eu
212.224.28.129	PTR	mail.darboven.com
212.224.28.203	PTR	a-212-224-28-203.easynet.de
212.224.28.240	PTR	a-212-224-28-240.easynet.de
212.224.28.244	PTR	a-212-224-28-244.easynet.de