These entries are queried from radb.net using whois, you can try my project getting these.
:AS28254 route: 177.71.16.0/21 origin: AS28254 descr: CT25259-ARGANET mnt-by: MAINT-AS22381 changed: alisson.david [at] megatelecom.com.br 20200625 #13:38:41Z source: RADB last-modified: 2023-11-13T16:01:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.16.128.0/20 descr: Diveo Telecom Customer Proxy Route origin: AS28254 notify: jtoni [at] diveo.net.br mnt-by: DIVEO-MNT changed: jtoni [at] diveo.net.br 20081010 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.16.128.0/20 origin: AS28254 descr: CT25259-ARGANET mnt-by: MAINT-AS22381 changed: alisson.david [at] megatelecom.com.br 20200625 #13:38:09Z source: RADB last-modified: 2023-11-13T16:01:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:618::/32 origin: AS28254 descr: CT25259-ARGANET mnt-by: MAINT-AS22381 changed: alisson.david [at] megatelecom.com.br 20200625 #17:29:53Z source: RADB last-modified: 2023-11-13T16:01:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source