These entries are queried from radb.net using whois, you can try my project getting these.
:AS213279 route: 2.57.252.0/24 descr: Vultr Customer Route origin: AS213279 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221116 #00:37:23-18000 source: RADB last-modified: 2023-11-13T16:13:08Z rpki-ov-state: valid route: 2.57.252.0/24 origin: AS213279 descr: mnt-by: sr42-mnT created: 2020-07-27T13:48:20Z last-modified: 2021-12-21T20:33:00Z 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: 2001:678:d44::/48 origin: AS213279 mnt-by: sr42-mnT created: 2020-05-06T13:11:01Z last-modified: 2020-05-06T13:11:01Z 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: 2001:678:d44::/48 descr: Vultr Customer Route origin: AS213279 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221202 #00:40:32-18000 source: RADB last-modified: 2023-11-13T16:13:11Z rpki-ov-state: valid route6: 2001:678:d44:1::/64 origin: AS213279 mnt-by: sr42-mnT created: 2021-02-13T14:07:32Z last-modified: 2021-02-13T14:07:32Z 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