These entries are queried from radb.net using whois, you can try my project getting these.
:AS46874 route: 192.206.4.0/22 descr: NWORKS Customer Route origin: AS46874 mnt-by: MAINT-AS36666 changed: plquimper [at] gtcomm.net 20130301 #22:50:24Z source: RADB last-modified: 2023-11-13T15:48:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source