These entries are queried from radb.net using whois, you can try my project getting these.
:AS1140 route: 94.198.152.0/21 descr: NL-SIDN origin: AS1140 mnt-by: SIDN-MNT created: 2008-11-11T14:40:49Z last-modified: 2008-11-11T14:40:49Z 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: 185.76.132.0/22 descr: NL-SIDN origin: AS1140 mnt-by: SIDN-MNT created: 2015-03-05T14:10:04Z last-modified: 2015-03-05T14:10:04Z 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: 193.176.144.0/24 descr: Stichting Internet Domeinregistratie Nederland origin: AS1140 notify: unixbeheer [at] sidn.nl mnt-by: SIDN-MNT created: 1970-01-01T00:00:00Z last-modified: 2014-02-21T12:58:40Z 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:d78::/32 descr: NL-SIDN origin: AS1140 mnt-by: SIDN-MNT created: 2008-11-11T14:39:24Z last-modified: 2008-11-11T14:39:24Z 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