These entries are queried from radb.net using whois, you can try my project getting these.
:AS64465 route: 91.212.251.0/24 descr: Comtron d.o.o. descr: http://www.comtron.si origin: AS64465 mnt-by: TELEMACH-MNT created: 2016-09-28T06:37:17Z last-modified: 2018-01-17T12:58:31Z 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:179c::/48 descr: Comtron d.o.o. descr: Broadband Network Services descr: http://www.comtron.si origin: AS64465 notify: ripe [at] telemach.net mnt-by: TELEMACH-MNT created: 2016-09-07T06:40:04Z last-modified: 2018-01-17T12:54:00Z 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