These entries are queried from radb.net using whois, you can try my project getting these.
:AS51514 route: 37.221.216.0/21 origin: AS51514 mnt-by: AY74061-MNT mnt-by: MNT-SPOTLER created: 2023-03-29T13:45:43Z last-modified: 2023-03-29T13:45:43Z 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: 46.31.48.0/21 descr: Spotler Network origin: AS51514 mnt-by: MNT-SPOTLER created: 2011-04-29T10:20:54Z last-modified: 2018-03-02T21:44:23Z 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: 185.79.82.0/23 origin: AS51514 mnt-by: MNT-SPOTLER created: 2018-11-01T08:02:46Z last-modified: 2018-11-01T08:02:46Z 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: 2a02:23e8::/32 descr: Blinker Network origin: AS51514 mnt-by: MNT-BLINKER created: 2011-04-29T12:37:49Z last-modified: 2011-04-29T12:37:49Z 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