These entries are queried from radb.net using whois, you can try my project getting these.
:AS263350 route: 191.37.12.0/22 descr: ITX-MHNET origin: AS263350 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181009 #13:06:19Z source: RADB last-modified: 2023-11-13T15:54:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.37.12.0/23 descr: CLARO S.A. Customer origin: AS263350 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200420 source: RADB last-modified: 2023-11-13T16:00:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.37.14.0/23 descr: CLARO S.A. Customer origin: AS263350 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220407 source: RADB last-modified: 2023-11-13T16:10:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:14c8::/32 descr: ITX-MHNET origin: AS263350 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181009 #13:06:43Z source: RADB last-modified: 2023-11-13T15:54:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source