These entries are queried from radb.net using whois, you can try my project getting these.
:AS43993 route: 91.195.252.0/23 descr: Grifin Ltd descr: Moscow, Russia descr: aggregate prefix origin: AS43993 mnt-by: MNT-GRIFIN created: 2007-11-06T13:33:25Z last-modified: 2007-11-06T13:33:25Z 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: 91.195.252.0/24 descr: GRIFIN,LTD B1 origin: AS43993 mnt-by: MNT-GRIFIN created: 2013-03-17T22:46:50Z last-modified: 2013-03-17T22:46:50Z 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: 91.195.253.0/24 descr: GRIFIN,LTD B2 origin: AS43993 mnt-by: MNT-GRIFIN created: 2013-03-17T22:47:28Z last-modified: 2013-03-17T22:47:28Z 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