These entries are queried from radb.net using whois, you can try my project getting these.
:AS266817 route: 45.6.44.0/22 descr: MONTEZUMA CORPORATION origin: AS266817 mnt-by: MAINT-MAG255 changed: ipadmin [at] MONTEZUMACO.COM 20190916 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source