These entries are queried from radb.net using whois, you can try my project getting these.
:AS61849 route: 201.149.104.0/22 descr: Service Provider . origin: AS61849 mnt-by: MAINT-AS263047 changed: eng [at] linkfull.com.br 20151130 #21:36:14Z source: RADB last-modified: 2023-11-13T15:58:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1a44::/32 descr: ITX-SELECTLATINA origin: AS61849 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20170810 #18:18:24Z source: RADB last-modified: 2023-11-13T15:51:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source