These entries are queried from radb.net using whois, you can try my project getting these.
:AS28247 route: 138.255.24.0/22 descr: SAMM origin: AS28247 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180425 #19:34:53Z source: RADB last-modified: 2023-11-13T15:53:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.24.0/22 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv4 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.24.0/24 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv4 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.25.0/24 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv4 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.26.0/24 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv4 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.27.0/24 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv4 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:124::/32 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv6 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:124::/32 descr: Intercampo Empreendimentos Tecnologicos Ltda origin: AS28247 mnt-by: MAINT-AS28247 notify: TC-HM-MNT changed: bgp [at] betaconsultoria.com.br 20101020 remarks: Wed Oct 20 22:33:10 BRST 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:124::/33 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv6 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:124:8000::/33 descr: Intercampo Empreendimentos Tecnologicos Ltda IPv6 Prefix origin: AS28247 mnt-by: MAINT-AS28247 changed: noc.brayo [at] hexanetworks.com.br 20231127 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source