These entries are queried from radb.net using whois, you can try my project getting these.
:AS25084 route: 212.87.240.0/23 descr: Technical University of Czestochowa descr: The IP space of non-educational customers of descr: Metropolitan Area Network CzestMAN, Czestochowa, POLAND origin: AS25084 remarks: more details in inetnum objects related to IPs mnt-routes: PL-CZESTMAN-MNT mnt-by: PL-CZESTMAN-MNT created: 2004-03-05T11:16:44Z last-modified: 2013-04-04T09:37:00Z 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: 212.87.244.0/22 descr: Technical University of Czestochowa descr: The IP space of non-educational customers of descr: Metropolitan Area Network CzestMAN, Czestochowa, POLAND origin: AS25084 mnt-routes: PL-CZESTMAN-MNT mnt-by: PL-CZESTMAN-MNT created: 2005-10-04T10:41:52Z last-modified: 2013-04-04T09:48:01Z 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: 2a01:699::/32 descr: The non-educational network of Technical University of Czestochowa descr: Czestochowa, POLAND mnt-routes: PL-CZESTMAN-MNT origin: AS25084 mnt-by: PL-CZESTMAN-MNT created: 2021-06-30T12:36:21Z last-modified: 2021-06-30T12:36:21Z 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:ffc8::/64 origin: AS25084 descr: EPIX-LORA-POLICZESTM mnt-by: EPOLUDNIE-MNT mnt-by: EPOLUDNIE-MP-MNT mnt-lower: EPOLUDNIE-MNT mnt-lower: EPOLUDNIE-MP-MNT created: 2022-05-16T07:07:45Z last-modified: 2022-05-16T07:07:45Z 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: not_found # No ROAs found, or RPKI validation not enabled for source