These entries are queried from radb.net using whois, you can try my project getting these.
:AS268378 route: 45.239.248.0/22 descr: ITX-BRASILNET origin: AS268378 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180820 #18:39:16Z source: RADB last-modified: 2023-11-13T15:54:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.239.248.0/24 origin: AS268378 descr: LUIZ GONZAGA SILVEIRA WERMELINGER admin-c: CGR Brasilnet tech-c: CGR Brasilnet mnt-by: MAINT-262808 changed: felipe.videira [at] brasilnet.net.br 20200909 #20:01:47Z source: RADB last-modified: 2023-11-13T16:01:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.239.249.0/24 origin: AS268378 descr: LUIZ GONZAGA SILVEIRA WERMELINGER admin-c: CGR Brasilnet tech-c: CGR Brasilnet mnt-by: MAINT-262808 changed: felipe.videira [at] brasilnet.net.br 20200909 #20:02:27Z source: RADB last-modified: 2023-11-13T16:01:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.239.250.0/24 origin: AS268378 descr: LUIZ GONZAGA SILVEIRA WERMELINGER admin-c: CGR Brasilnet tech-c: CGR Brasilnet mnt-by: MAINT-262808 changed: felipe.videira [at] brasilnet.net.br 20200909 #20:05:04Z source: RADB last-modified: 2023-11-13T16:01:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.239.251.0/24 origin: AS268378 descr: LUIZ GONZAGA SILVEIRA WERMELINGER admin-c: CGR Brasilnet tech-c: CGR Brasilnet mnt-by: MAINT-262808 changed: felipe.videira [at] brasilnet.net.br 20200909 #20:05:51Z source: RADB last-modified: 2023-11-13T16:01:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:5044::/32 origin: AS268378 descr: FORTE-CUSTOMER mnt-by: MAINT-AS263009 changed: douglas [at] fortetelecom.com.br 20190605 #19:06:59Z source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source