These entries are queried from radb.net using whois, you can try my project getting these.
:AS48494 route: 91.211.52.0/22 descr: MK-NET origin: AS48494 mnt-by: BUKO-MNT created: 2008-12-11T16:04:09Z last-modified: 2009-12-25T15:36:34Z 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: 176.106.144.0/20 descr: MK-NET origin: AS48494 mnt-by: BUKO-MNT created: 2012-01-18T17:21:37Z last-modified: 2012-01-18T17:21:37Z 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