These entries are queried from radb.net using whois, you can try my project getting these.
:AS56662 route6: 2001:67c:21ec::/48 descr: EUTPNET origin: AS56662 mnt-by: E-UTP-NET-MNT created: 2011-04-21T12:36:53Z last-modified: 2011-04-21T12:36:53Z 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: 2001:67c:21ec::/48 descr: Vultr Customer Route origin: AS56662 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221210 #00:37:50-18000 source: RADB last-modified: 2023-11-13T16:13:12Z rpki-ov-state: valid route6: 2a0f:5707:ba00::/44 origin: AS56662 mnt-by: E-UTP-NET-MNT mnt-by: EMZET-MNT created: 2022-10-18T13:10:51Z last-modified: 2022-10-18T13:10:55Z 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:5707:ba00::/44 origin: AS56662 descr: e-utp.net mnt-by: MAINT-AS9312 changed: mz [at] xtom.com 20221018 #13:22:13Z source: RADB last-modified: 2023-11-13T16:12:45Z rpki-ov-state: valid route6: 2a0f:5707:ba00::/44 descr: e-utp.net origin: AS56662 mnt-by: MAINT-AS206499 source: ALTDB changed: noc [at] m-m-networks.net 20221018 rpki-ov-state: valid