These entries are queried from radb.net using whois, you can try my project getting these.
:AS208683 route: 45.89.132.0/22 origin: AS208683 mnt-routes: mnt-nl-factoryroermond-1 mnt-routes: mnt-nl-thefactory-1 mnt-routes: NIDAL-MNT mnt-by: NIDAL-MNT mnt-by: mnt-nl-factoryroermond-1 mnt-by: mnt-nl-thefactory-1 created: 2020-01-06T16:35:44Z last-modified: 2020-01-06T16:35:44Z 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: 2a0b:cf00::/32 origin: AS208683 mnt-routes: mnt-nl-factoryroermond-1 mnt-routes: mnt-nl-thefactory-1 mnt-routes: NIDAL-MNT mnt-by: NIDAL-MNT mnt-by: mnt-nl-factoryroermond-1 mnt-by: mnt-nl-thefactory-1 created: 2020-01-06T16:40:40Z last-modified: 2020-01-06T16:40:40Z 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