These entries are queried from radb.net using whois, you can try my project getting these.
:AS271228 route: 177.223.152.0/22 origin: AS271228 descr: AS271228 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20201204 #16:55:43Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7838::/32 origin: AS271228 descr: AS271228 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20201204 #17:01:25Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source