These entries are queried from radb.net using whois, you can try my project getting these.
:AS199475 route: 185.15.0.0/22 descr: KNC-NET origin: AS199475 mnt-by: DCENTER-MNT mnt-by: KNC-MNT created: 2013-01-27T20:24:26Z last-modified: 2013-01-27T20:24:26Z 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: 185.189.136.0/22 descr: KNC-NET origin: AS199475 mnt-by: DCENTER-MNT mnt-by: KNC-MNT created: 2018-01-30T22:31:13Z last-modified: 2018-01-30T22:31:13Z 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: 2a0b:ea80::/32 origin: AS199475 mnt-by: RYBNET-MNT created: 2021-03-04T13:16:44Z last-modified: 2021-03-04T13:16:44Z 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 route6: 2a10:f781:10:cc33::/64 origin: AS199475 descr: EPIX-LORA-MAZOWSS mnt-by: EPOLUDNIE-MNT mnt-by: EPOLUDNIE-MP-MNT mnt-lower: EPOLUDNIE-MNT mnt-lower: EPOLUDNIE-MP-MNT created: 2022-05-16T07:05:18Z last-modified: 2022-05-16T07:05:18Z 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