These entries are queried from radb.net using whois, you can try my project getting these.
:AS50509 route: 5.188.236.0/23 descr: Transroute origin: AS50509 mnt-by: MNT-PIN mnt-by: MNT-PINSUPPORT created: 2019-11-15T15:17:26Z last-modified: 2019-11-15T15:17:26Z 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: 146.185.222.0/24 origin: AS50509 mnt-by: MNT-PIN mnt-by: MNT-PINSUPPORT created: 2019-12-19T15:54:11Z last-modified: 2019-12-19T15:54:11Z 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: 2001:678:c5c::/48 origin: AS50509 mnt-by: MNT-PIN created: 2021-02-15T12:10:36Z last-modified: 2021-02-15T12:10:36Z 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