These entries are queried from radb.net using whois, you can try my project getting these.
:AS36233 route: 144.121.1.0/24 descr: Priority Management origin: AS36233 mnt-by: MAINT-AS7029 changed: hbabeu [at] corp.earthlink.com 20160616 #14:31:51Z source: RADB last-modified: 2023-11-13T16:03:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source