These entries are queried from radb.net using whois, you can try my project getting these.
:AS203255 route: 185.137.48.0/22 descr: MROCZA - NET Ewa Kowalkowska origin: AS203255 mnt-by: pl-mroczanet-1-mnt created: 2016-03-01T15:39:23Z last-modified: 2016-03-01T15:39:23Z 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 route: 185.137.48.0/23 descr: MROCZA - NET Ewa Kowalkowska origin: AS203255 mnt-by: pl-mroczanet-1-mnt created: 2017-10-10T18:24:58Z last-modified: 2017-10-10T18:24:58Z 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: 185.137.48.0/24 descr: MROCZA - NET Ewa Kowalkowska origin: AS203255 mnt-by: pl-mroczanet-1-mnt created: 2017-10-10T18:18:12Z last-modified: 2017-10-10T18:18:12Z 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: 2a0f:cb40::/32 origin: AS203255 mnt-by: pl-mroczanet-1-mnt created: 2020-03-20T11:14:33Z last-modified: 2020-03-20T11:14:33Z 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:a4b8::/64 origin: AS203255 descr: EPIX-LORA-MROCZANET mnt-by: EPOLUDNIE-MNT mnt-by: EPOLUDNIE-MP-MNT mnt-lower: EPOLUDNIE-MNT mnt-lower: EPOLUDNIE-MP-MNT created: 2022-05-16T07:05:52Z last-modified: 2022-05-16T07:05:52Z 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