These entries are queried from radb.net using whois, you can try my project getting these.
:AS53176 route6: 2804:1854::/32 descr: ITX-DB3 origin: AS53176 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180528 #17:19:32Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2b8c::/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: AS53176 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20200721 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source