These entries are queried from radb.net using whois, you can try my project getting these.
:AS45999 route: 211.236.84.0/24 descr: Korea Transportation Safety Authority origin: AS45999 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20170215 #17:00:31Z source: RADB last-modified: 2023-11-13T15:50:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source