These entries are queried from radb.net using whois, you can try my project getting these.
:AS2833 route: 130.239.0.0/16 descr: UMUNET origin: AS2833 mnt-by: SUNET-MNT created: 1970-01-01T00:00:00Z last-modified: 2007-06-26T07:32:01Z 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: 192.36.112.0/23 descr: UMUNET origin: AS2833 mnt-by: SUNET-MNT created: 1970-01-01T00:00:00Z last-modified: 2007-06-26T07:31:59Z 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: 192.36.114.0/24 descr: UMUNET origin: AS2833 mnt-by: SUNET-MNT created: 2015-03-27T11:43:03Z last-modified: 2015-03-27T11:43:03Z 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