These entries are queried from radb.net using whois, you can try my project getting these.
:AS393834 route: 63.157.124.0/24 descr: Clyde Companies origin: AS393834 mnt-by: MAINT-AS13415 changed: chris.dunford [at] veracitynetworks.com 20170601 #17:05:30Z source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source