These entries are queried from radb.net using whois, you can try my project getting these.
:AS57255 route: 91.230.156.0/24 descr: Platkom Tele-Informatyka Piotr Platek origin: AS57255 mnt-by: NETIA-MNT created: 2011-09-07T14:21:55Z last-modified: 2011-09-07T14:21:55Z 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 route: 213.156.103.0/24 mnt-lower: TSLA1-MNT origin: AS57255 mnt-by: TSLA1-MNT created: 2024-04-02T12:42:48Z last-modified: 2024-04-02T12:42:48Z 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: 2a10:f781:10:d34f::/64 origin: AS57255 descr: EPIX-LORA-PLATKOM mnt-by: EPOLUDNIE-MNT mnt-by: EPOLUDNIE-MP-MNT mnt-lower: EPOLUDNIE-MNT mnt-lower: EPOLUDNIE-MP-MNT created: 2022-05-16T07:07:34Z last-modified: 2022-05-16T07:07:34Z 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