These entries are queried from radb.net using whois, you can try my project getting these.
:AS61593 route: 45.237.144.0/22 descr: ITX-SAMM origin: AS61593 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180905 #17:46:11Z source: RADB last-modified: 2023-11-13T15:54:36Z rpki-ov-state: valid route: 45.237.144.0/22 origin: AS61593 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: felipe [at] interconecte.com.br mnt-by: MAINT-AS61593 source: TC last-modified: 2022-06-10T01:03:04Z rpki-ov-state: valid route: 45.237.144.0/23 descr: CLARO S.A. Customer origin: AS61593 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20240209 source: RADB last-modified: 2024-02-09T18:56:00Z rpki-ov-state: valid route6: 2804:4eb4::/32 origin: AS61593 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: felipe [at] interconecte.com.br mnt-by: MAINT-AS61593 source: TC last-modified: 2022-06-10T01:03:04Z rpki-ov-state: valid route6: 2804:4eb4::/32 descr: ITX-SAMM origin: AS61593 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180905 #17:46:37Z source: RADB last-modified: 2023-11-13T15:54:36Z rpki-ov-state: valid