These entries are queried from radb.net using whois, you can try my project getting these.
:AS55873 route: 136.237.173.0/24 descr: route-object for AS55873 origin: AS55873 mnt-by: MAINT-AS15695 changed: linn.thetnaing [at] expereo.com 20181114 #01:23:53Z source: RADB last-modified: 2023-11-13T15:55:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source