These entries are queried from radb.net using whois, you can try my project getting these.
:AS268590 route: 45.163.252.0/22 descr: AS268590 origin: AS268590 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20181005 #19:02:46Z source: RADB last-modified: 2023-11-13T15:54:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.163.253.0/24 descr: CLARO S.A. Customer origin: AS268590 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200702 source: RADB last-modified: 2023-11-13T16:01:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:5388::/32 descr: AS268590 origin: AS268590 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20181005 #19:04:03Z source: RADB last-modified: 2023-11-13T15:54:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source