These entries are queried from radb.net using whois, you can try my project getting these.
:AS263236 route: 66.128.32.0/21 origin: AS263236 descr: ITX-CUSTOMER-ITELSA mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20190416 #16:23:05Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: valid route: 66.128.40.0/21 origin: AS263236 descr: ITX-CUSTOMER-ITELSA mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20190417 #14:26:09Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: valid route6: 2803:9680::/32 descr: ITX-ITELSA origin: AS263236 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20170817 #19:24:26Z source: RADB last-modified: 2023-11-13T15:51:19Z rpki-ov-state: valid