These entries are queried from radb.net using whois, you can try my project getting these.
:AS268479 route: 45.161.240.0/22 descr: PROXY FOR OPENX CUSTOMER origin: AS268479 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20210308 remarks: Mon Mar 8 21:18:13 2021 source: RADB last-modified: 2023-11-13T16:05:08Z rpki-ov-state: valid route: 45.161.240.0/24 origin: AS268479 descr: MegaLink mnt-by: MAINT-AS262427 changed: silvanei [at] invistanet.com.br 20200516 #15:03:40Z source: RADB last-modified: 2023-11-13T16:08:03Z rpki-ov-state: valid route: 45.161.241.0/24 origin: AS268479 descr: MegaLink mnt-by: MAINT-AS262427 changed: silvanei [at] invistanet.com.br 20200516 #15:04:10Z source: RADB last-modified: 2023-11-13T16:08:03Z rpki-ov-state: valid route: 45.161.242.0/24 origin: AS268479 descr: MegaLink mnt-by: MAINT-AS262427 changed: silvanei [at] invistanet.com.br 20200516 #15:04:36Z source: RADB last-modified: 2023-11-13T16:08:03Z rpki-ov-state: valid route: 45.161.243.0/24 origin: AS268479 descr: MegaLink mnt-by: MAINT-AS262427 changed: silvanei [at] invistanet.com.br 20200516 #15:05:10Z source: RADB last-modified: 2023-11-13T16:08:03Z rpki-ov-state: valid route6: 2804:51d0::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS268479 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20190529 remarks: Wed May 29 17:41:27 2019 source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: valid