These entries are queried from radb.net using whois, you can try my project getting these.
:AS55511 route6: 2403:500::/32 descr: MILLICOM-LAO origin: AS55511 mnt-by: MAINT-AS38082 changed: netadmin [at] trueintergateway.com 20120201 #08:56:52Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source