These entries are queried from radb.net using whois, you can try my project getting these.
:AS51503 route: 146.120.232.0/23 origin: AS51503 mnt-by: mnt-uz-daniel1-1 created: 2021-06-09T09:39:45Z last-modified: 2021-06-09T09:39:45Z 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: valid route: 193.222.110.0/24 origin: AS51503 mnt-by: mnt-uz-daniel1-1 created: 2021-01-27T13:03:28Z last-modified: 2021-01-27T13:03:28Z 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