These entries are queried from radb.net using whois, you can try my project getting these.
:AS48667 route: 91.216.72.0/24 descr: Akvilon Ltd Network origin: AS48667 mnt-by: MNT-AKVILON created: 2010-05-20T09:51:55Z last-modified: 2010-05-20T10:11:09Z 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: 91.229.208.0/23 descr: AKVILON2-NET origin: AS48667 mnt-by: MNT-AKVILON created: 2011-06-29T16:29:05Z last-modified: 2011-06-29T16:29:05Z 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: 176.124.160.0/21 descr: AKVILON-NET origin: AS48667 mnt-by: MNT-AKVILON created: 2012-09-27T14:05:36Z last-modified: 2012-09-27T14:05:36Z 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