These entries are queried from radb.net using whois, you can try my project getting these.
:AS263950 route: 138.255.0.0/22 descr: TVANET-TELECOM origin: AS263950 mnt-by: MAINT-AS263950 changed: guilherme.assisnj [at] gmail.com 20200904 source: ALTDB rpki-ov-state: valid route: 138.255.0.0/22 descr: Edatel-Customer origin: AS263950 mnt-by: MAINT-AS263047 changed: eng [at] linkfull.com.br 20170522 #19:07:52Z source: RADB last-modified: 2023-11-13T15:58:51Z rpki-ov-state: valid route: 138.255.0.0/22 descr: TVANET-TELECOM origin: AS263950 mnt-by: MAINT-AS263950 changed: guilherme.assisnj [at] gmail.com 20200911 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: valid route6: 2804:2840::/32 descr: TVANET-TELECOM origin: AS263950 mnt-by: MAINT-AS263950 changed: guilherme.assisnj [at] gmail.com 20200904 source: ALTDB rpki-ov-state: valid route6: 2804:2840::/32 descr: Transito NBTelecom to TVANET TELECOM LTDA origin: AS263950 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS28663 changed: epafras [at] durand.com.br 20181206 source: RADB last-modified: 2023-11-13T16:07:37Z rpki-ov-state: valid