These entries are queried from radb.net using whois, you can try my project getting these.
:AS30708 route: 208.86.92.0/22 descr: RAAPID Core net origin: AS30708 mnt-by: MNT-RAAPI changed: noc [at] raapid.net 20190302 source: ARIN rpki-ov-state: valid route: 208.86.92.0/22 descr: Vultr Customer Route origin: AS30708 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221202 #00:35:40-18000 source: RADB last-modified: 2023-11-13T16:13:10Z rpki-ov-state: valid