These entries are queried from radb.net using whois, you can try my project getting these.
:AS19595 route: 74.120.72.0/22 descr: Proxy registered for SDRHU origin: AS19595 mnt-by: MAINT-AS5690 changed: luke [at] vianet.ca 20091201 source: RADB last-modified: 2023-11-13T15:40:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source