These entries are queried from radb.net using whois, you can try my project getting these.
:AS53108 route: 187.108.224.0/20 descr: bloco de ip´s cliente "Netell" criado pela equipe Durand do Brazil origin: AS53108 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: eduardo [at] durand.com.br 20160506 #02:27:50Z source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.108.224.0/24 descr: Bloco de ips cliente "Netell" criado pela equipe Durand do Brazil origin: AS53108 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: eduardo [at] durand.com.br 20160508 #14:29:40Z source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:470::/32 descr: Bloco de ip´s cliente "Netell" criado pelo equipe Durand do Brazil origin: AS53108 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: eduardo [at] durand.com.br 20160506 #02:28:45Z source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source