These entries are queried from radb.net using whois, you can try my project getting these.
:AS60307 route: 147.161.22.0/24 descr: Fachbereich Finanzen der Hochschule des Bundes f\xfcr \xf6ffentliche Verwaltung HS Bund FB Finanzen origin: AS60307 mnt-by: WEBDISCOUNT-MNT mnt-routes: WEBDISCOUNT-MNT created: 2021-10-20T06:15:29Z last-modified: 2021-10-20T06:15:29Z 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: not_found # No ROAs found, or RPKI validation not enabled for source