These entries are queried from radb.net using whois, you can try my project getting these.
:AS50815 route: 178.216.56.0/21 descr: Telprom d.o.o. descr: Kvedrova cesta 5a descr: 1000 Ljubljana descr: Slovenia origin: AS50815 mnt-by: AS9119-MNT notify: ripe [at] softnet.si created: 2010-06-11T07:48:00Z last-modified: 2020-03-18T14:54:24Z 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: 194.0.174.0/23 descr: TELPROM Informacijske tehnologije d.o.o. descr: Kvedrova cesta 5a descr: 1000 Ljubljana descr: Slovenia origin: AS50815 mnt-by: AS9119-MNT notify: ripe [at] softnet.si created: 2012-08-22T12:05:42Z last-modified: 2012-08-22T12:05:42Z 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:2300::/48 descr: Telprom d.o.o. descr: Kvedrova cesta 5a descr: 1000 Ljubljana descr: Slovenia origin: AS50815 mnt-by: AS9119-MNT notify: ripe [at] softnet.si created: 2011-06-16T11:29:39Z last-modified: 2020-03-18T14:55:04Z 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