These entries are queried from radb.net using whois, you can try my project getting these.
:AS263259 route: 200.10.48.0/21 origin: AS263259 descr: AS263259 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20210127 #13:42:53Z source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: valid route6: 2804:17f0::/32 origin: AS263259 descr: AS263259 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20210127 #13:43:25Z source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: valid