These entries are queried from radb.net using whois, you can try my project getting these.
:AS268240 route: 45.236.144.0/22 descr: ITX-NOSSA origin: AS268240 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180525 #12:47:14Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.236.145.0/24 descr: CLARO S.A. Customer origin: AS268240 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200520 source: RADB last-modified: 2023-11-13T16:00:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.236.146.0/24 descr: CLARO S.A. Customer origin: AS268240 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200520 source: RADB last-modified: 2023-11-13T16:00:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:4e1c::/32 descr: ITX-NOSSA origin: AS268240 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180525 #12:47:48Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source