These entries are queried from radb.net using whois, you can try my project getting these.
:AS2488 route: 147.125.0.0/16 descr: IIASA origin: AS2488 mnt-by: AS1853-MNT created: 2018-01-09T11:32:57Z last-modified: 2018-01-09T11:32:57Z 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:1b70::/48 descr: IIASA-V6 origin: AS2488 mnt-by: AS1853-MNT created: 2018-01-09T11:35:32Z last-modified: 2018-01-09T11:35:32Z 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