These entries are queried from radb.net using whois, you can try my project getting these.
:AS212073 route: 91.209.16.0/24 origin: AS212073 mnt-by: mnt-pt-netureza-1 created: 2021-01-02T02:35:33Z last-modified: 2021-01-02T02:35:33Z 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: 2a0f:c440::/48 origin: AS212073 mnt-by: mnt-pt-netureza-1 created: 2021-01-02T02:36:53Z last-modified: 2021-01-02T02:36:53Z 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: 2a0f:c440::/48 descr: Vultr Customer Route origin: AS212073 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221202 #00:40:23-18000 source: RADB last-modified: 2023-11-13T16:13:11Z rpki-ov-state: valid route6: 2a0f:c444::/48 origin: AS212073 mnt-by: mnt-pt-netureza-1 created: 2021-01-02T03:12:12Z last-modified: 2021-01-02T03:12:12Z 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 route6: 2a0f:c444:800::/48 origin: AS212073 mnt-by: mnt-pt-netureza-1 created: 2021-01-02T03:12:49Z last-modified: 2021-01-02T03:12:49Z 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 route6: 2a0f:c444:8000::/48 origin: AS212073 mnt-by: mnt-pt-netureza-1 created: 2021-01-02T03:13:15Z last-modified: 2021-01-02T03:13:15Z 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