These entries are queried from radb.net using whois, you can try my project getting these.
:AS48091 route: 185.140.236.0/23 origin: AS48091 descr: CZ-KRAJVYSOCINA-20160229 mnt-by: MAINT-AS2852 changed: novakv [at] cesnet.cz 20240313 # 1312Z source: RADB last-modified: 2024-03-13T13:12:00Z rpki-ov-state: valid route: 185.140.236.0/23 origin: AS48091 mnt-by: cz-krajvysocina-1-mnt created: 2021-12-11T20:57:48Z last-modified: 2021-12-11T20:57:48Z 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 route: 195.93.216.0/23 descr: ROWANet-AS origin: AS48091 mnt-by: MAINT-AS2852 changed: novakv [at] cesnet.cz 20130228 #12:19:35Z source: RADB last-modified: 2023-11-13T15:45:07Z rpki-ov-state: valid route: 195.93.216.0/23 descr: address space RowaNet KR Vysocina origin: AS48091 mnt-by: cz-krajvysocina-1-mnt created: 2009-09-07T08:50:46Z last-modified: 2018-10-28T11:45:37Z 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: 2001:67c:256c::/48 origin: AS48091 mnt-by: cz-krajvysocina-1-mnt created: 2018-05-02T21:28:08Z last-modified: 2018-05-02T21:28:08Z 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: 2a05:37c0::/29 descr: CZ-KRAJVYSOCINA-20160302 origin: AS48091 mnt-by: MAINT-AS2852 changed: novakv [at] cesnet.cz 20160526 #08:31:29Z source: RADB last-modified: 2023-11-13T15:49:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a05:37c0::/32 origin: AS48091 mnt-by: cz-krajvysocina-1-mnt created: 2024-04-08T12:10:45Z last-modified: 2024-04-08T12:10:45Z 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