These entries are queried from radb.net using whois, you can try my project getting these.
:AS41273 route: 83.171.216.0/22 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2018-11-26T13:50:44Z last-modified: 2018-11-26T13:50:44Z 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 route: 83.171.216.0/22 descr: Route for 83.171.216.0/22 origin: AS41273 mnt-by: MAINT-AS60391 changed: marc [at] prmg.lu 20201231 #21:46:24Z source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: valid route: 83.171.216.0/23 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2021-01-21T11:25:56Z last-modified: 2021-01-21T11:25:56Z 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: 83.171.216.0/24 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2021-01-21T11:27:50Z last-modified: 2021-01-21T11:27:50Z 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: 83.171.217.0/24 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2021-01-21T11:28:12Z last-modified: 2021-01-21T11:28:12Z 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: 83.171.218.0/23 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2021-01-21T11:27:34Z last-modified: 2021-01-21T11:27:34Z 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: 83.171.218.0/24 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2021-01-21T11:28:27Z last-modified: 2021-01-21T11:28:27Z 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: 83.171.219.0/24 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2021-01-21T11:28:42Z last-modified: 2021-01-21T11:28:42Z 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: 2a09:2f00::/29 origin: AS41273 mnt-by: mnt-lu-acett-1 created: 2019-02-18T14:36:28Z last-modified: 2019-02-18T14:36:28Z 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