These entries are queried from radb.net using whois, you can try my project getting these.
:AS48395 route: 91.209.141.0/24 descr: Ministerstwo Kultury i Dziedzictwa Narodowego descr: ul.Krakowskie Przedmiescie 15/17 descr: 00-071 Warszawa descr: Poland origin: AS48395 mnt-by: NETIA-MNT created: 2008-11-21T10:07:57Z last-modified: 2017-06-27T09:20:08Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:678:4b4::/48 origin: AS48395 mnt-by: NETIA-MNT created: 2017-06-29T08:12:44Z last-modified: 2021-09-02T07:27:35Z 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