These entries are queried from radb.net using whois, you can try my project getting these.
:AS53137 route6: 2804:33c::/32 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. origin: AS53137 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20151028 #11:12:00Z source: RADB last-modified: 2023-11-13T15:48:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source