These entries are queried from radb.net using whois, you can try my project getting these.
:AS46258 route: 208.93.60.0/22 descr: Region III ESC origin: AS46258 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20170929 #21:10:46Z source: RADB last-modified: 2023-11-13T15:51:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source