These entries are queried from radb.net using whois, you can try my project getting these.
:AS19300 route: 4.15.33.128/25 descr: KUBRA - US1 origin: AS19300 mnt-by: MAINT-AS19300 changed: nsginfo [at] kubra.com 20201019 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 4.35.200.128/25 descr: KUBRA - US2 origin: AS19300 mnt-by: MAINT-AS19300 changed: nsginfo [at] kubra.com 20201104 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.216.45.0/24 descr: KUBRA - US2 origin: AS19300 mnt-by: MAINT-AS19300 changed: nsginfo [at] kubra.com 20201104 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.66.117.0/24 descr: KUBRA - US1 origin: AS19300 mnt-by: MAINT-AS19300 changed: nsginfo [at] kubra.com 20201014 source: ALTDB rpki-ov-state: valid