These entries are queried from radb.net using whois, you can try my project getting these.
:AS8450 route: 143.93.160.0/19 descr: FH Worms origin: AS8450 mnt-by: AS8450-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:32Z 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: 143.93.244.0/22 descr: FH-RPL-NET origin: AS8450 mnt-by: AS8450-MNT mnt-by: AS2857-MNT created: 2016-10-10T15:50:11Z last-modified: 2016-10-10T15:50:11Z 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: 193.30.18.0/24 descr: FH Worms origin: AS8450 mnt-by: AS8450-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:26Z 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: 193.43.29.0/24 descr: FH Worms origin: AS8450 notify: hostmaster [at] IBS.de mnt-by: AS8450-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:26Z 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