These entries are queried from radb.net using whois, you can try my project getting these.
:AS262761 route: 170.245.104.0/22 origin: AS262761 descr: SINAL BR - SBRB-170-245-104 mnt-by: MAINT-AS262761 changed: caio [at] sinalbr.com.br 20190827 #21:31:27Z source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.104.0/22 descr: Sinal Br Telecom Ltda origin: AS262761 mnt-by: MAINT-AS262761 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20190509 #18:12:22(-03) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.21.32.0/20 origin: AS262761 descr: SINAL BR - SBRB-177-21-32 mnt-by: MAINT-AS262761 changed: caio [at] sinalbr.com.br 20190827 #21:30:32Z source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.225.128.0/19 origin: AS262761 descr: SINAL BR - SBRB-186-225-128 mnt-by: MAINT-AS262761 changed: caio [at] sinalbr.com.br 20190827 #21:27:48Z source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:44c::/32 origin: AS262761 descr: Sinal Br Telecom Ltda notify: noc [at] sinalbr.com.br mnt-by: MAINT-AS262761 changed: caio [at] sinalbr.com.br 20190828 #14:12:52Z source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source