These entries are queried from radb.net using whois, you can try my project getting these.
:AS39292 route: 185.80.247.0/24 descr: Duocast origin: AS39292 mnt-by: MNT-DUOCAST created: 2016-02-03T13:41:33Z last-modified: 2016-02-03T13:41:33Z 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: valid route: 194.50.96.0/24 origin: AS39292 mnt-by: MNT-DUOCAST created: 2022-04-29T14:26:02Z last-modified: 2022-04-29T14:26:02Z 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: 2a01:1b1::/32 origin: AS39292 mnt-by: MNT-DUOCAST created: 2018-01-19T14:52:30Z last-modified: 2018-01-19T14:52:30Z 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: valid route6: 2a01:1b2::/32 origin: AS39292 mnt-by: MNT-DUOCAST created: 2024-01-26T10:27:47Z last-modified: 2024-01-26T10:27:47Z 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