These entries are queried from radb.net using whois, you can try my project getting these.
:AS197496 route: 91.194.18.0/23 descr: SKYLAN origin: AS197496 mnt-by: ATMAN-MNT mnt-by: MNT-SKYLAN created: 2010-12-29T08:10:37Z last-modified: 2010-12-29T08:10:37Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 91.234.112.0/22 descr: SKYLAN origin: AS197496 mnt-by: ATMAN-MNT mnt-by: MNT-SKYLAN created: 2012-01-02T09:26:10Z last-modified: 2012-01-02T09:26:10Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source