These entries are queried from radb.net using whois, you can try my project getting these.
:AS209314 route: 148.81.11.0/24 descr: Akademia Sztuk Pieknych w Warszawie origin: AS209314 notify: registry [at] nask.pl mnt-by: NASK2-MNT created: 2019-02-28T13:53:20Z last-modified: 2019-02-28T13:53:20Z 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: 148.81.12.0/24 descr: Akademia Sztuk Pieknych w Warszawie origin: AS209314 notify: registry [at] nask.pl mnt-by: NASK2-MNT created: 2021-04-08T08:30:25Z last-modified: 2021-04-08T08:30:25Z 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:d28::/48 descr: Akademia Sztuk Pieknych w Warszawie origin: AS209314 notify: registry [at] nask.pl mnt-by: NASK2-MNT created: 2020-04-24T14:36:31Z last-modified: 2020-04-24T14:36:31Z 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