These entries are queried from radb.net using whois, you can try my project getting these.
:AS50989 route: 192.165.250.0/24 descr: AnDilo route origin: AS50989 mnt-by: MNT-SITAB created: 2013-08-14T18:52:56Z last-modified: 2018-09-17T16:40:01Z 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: 193.104.214.0/24 origin: AS50989 mnt-by: MNT-SITAB created: 2024-02-22T17:33:05Z last-modified: 2024-02-22T17:33:05Z 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: 193.234.15.0/24 origin: AS50989 mnt-by: MNT-SITAB created: 2018-05-17T16:39:45Z last-modified: 2018-05-17T16:39:45Z 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 route6: 2a00:1c20::/32 descr: SITAB Infra aggregated route origin: AS50989 mnt-by: MNT-SITAB created: 2010-05-14T15:50:32Z last-modified: 2018-09-17T16:31:12Z 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