These entries are queried from radb.net using whois, you can try my project getting these.
:AS204816 route: 217.20.253.0/24 origin: AS204816 mnt-by: mrdtr-mnt created: 2023-07-19T13:35:23Z last-modified: 2023-07-19T13:35:23Z 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: 2a12:ffc0::/29 origin: AS204816 mnt-by: mrdtr-mnt created: 2022-08-01T13:48:53Z last-modified: 2022-08-01T13:48:53Z 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