These entries are queried from radb.net using whois, you can try my project getting these.
:AS34883 route: 91.229.57.0/24 descr: FH JOANNEUM Gesellschaft mbH. origin: AS34883 mnt-by: FH-JOANNEUM-MNT mnt-by: ACONET-LIR-MNT notify: ripe-notify [at] fh-joanneum.at created: 2011-06-16T10:18:23Z last-modified: 2016-04-11T10:26:53Z 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: 2001:67c:1280::/48 descr: FH JOANNEUM GmbH origin: AS34883 notify: ripe-notify [at] fh-joanneum.at mnt-by: FH-JOANNEUM-MNT mnt-by: ACONET-LIR-MNT created: 2014-07-16T09:53:10Z last-modified: 2016-04-11T10:14:02Z 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