These entries are queried from radb.net using whois, you can try my project getting these.
:AS29783 route: 38.27.192.0/24 descr: Basswood Capital Mgmt origin: AS29783 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20170803 source: RADB last-modified: 2023-11-13T15:51:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source