These entries are queried from radb.net using whois, you can try my project getting these.
:AS33839 route: 84.247.31.0/24 descr: Altair Net origin: AS33839 mnt-by: ALTAIR-NET-MNT created: 2008-07-23T14:08:40Z last-modified: 2008-07-23T14:08:40Z 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: 194.102.108.0/24 descr: Altair Net origin: AS33839 mnt-by: ALTAIR-NET-MNT created: 2008-07-14T11:49:25Z last-modified: 2008-07-14T11:49:25Z 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: 217.19.7.0/24 descr: Altair Net SRL origin: AS33839 mnt-by: ALTAIR-NET-MNT created: 2011-03-21T14:15:06Z last-modified: 2011-03-21T14:15:06Z 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