These entries are queried from radb.net using whois, you can try my project getting these.
:AS3347 route: 192.207.142.0/24 descr: CETREL-NET origin: AS3347 notify: hostmaster [at] cetrel.lu mnt-by: CETREL-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:20Z 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: 193.168.2.0/24 descr: CETREL-NET origin: AS3347 mnt-by: CETREL-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:22Z 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 route: 217.117.192.0/20 descr: CETREL-LIR-BLOCK1 origin: AS3347 mnt-by: CETREL-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:42Z 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: 2a00:10f8::/32 descr: CETREL-LIR-v6-BLOCK1 origin: AS3347 mnt-by: CETREL-MNT mnt-lower: CETREL-MNT mnt-routes: CETREL-MNT created: 2011-04-11T09:17:36Z last-modified: 2011-04-11T09:17:36Z 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