These entries are queried from radb.net using whois, you can try my project getting these.
:AS29574 route: 194.146.140.0/22 descr: VNTU-NET origin: AS29574 mnt-by: VNTU-MNT created: 2021-11-20T20:48:42Z last-modified: 2021-11-20T20:52:06Z 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: 194.146.140.0/24 descr: VNTU-VCLOUD-NET0 origin: AS29574 notify: hostmaster [at] vntu.edu.ua mnt-by: VNTU-MNT created: 2003-10-14T15:53:33Z last-modified: 2023-07-03T17:11:22Z 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: 194.146.141.0/24 descr: VNTU-VCLOUD-NET1 origin: AS29574 notify: hostmaster [at] vntu.edu.ua mnt-by: VNTU-MNT created: 2003-10-14T15:53:55Z last-modified: 2023-07-03T17:12:19Z 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: 194.146.142.0/24 descr: VNTU-CAMPUS-NET2 origin: AS29574 notify: hostmaster [at] vntu.edu.ua mnt-by: VNTU-MNT created: 2003-10-14T15:53:58Z last-modified: 2023-07-03T17:12:56Z 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: 194.146.143.0/24 descr: VNTU-CAMPUS-NET3 origin: AS29574 notify: hostmaster [at] vntu.edu.ua mnt-by: VNTU-MNT created: 2003-10-14T15:54:31Z last-modified: 2023-07-03T17:13:29Z 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