These entries are queried from radb.net using whois, you can try my project getting these.
:AS262978 route: 143.0.120.0/22 origin: AS262978 descr: This is a BR.Digital customer proxy route object that was created because no existing route object with the same origin was found. Please contact bgp [at] br.digital if you have any questions regarding this object. mnt-by: MAINT-AS14840 changed: gacosta [at] br.digital 20210909 #19:24:15Z source: RADB last-modified: 2023-11-13T16:08:12Z rpki-ov-state: valid route: 186.250.184.0/22 origin: AS262978 descr: Proxy-registered route object mnt-by: MAINT-AS8167 changed: ip-bgp [at] oi.net.br 20190207 #23:25:17Z source: RADB last-modified: 2023-11-13T15:55:28Z rpki-ov-state: valid route6: 2804:4d44::/32 origin: AS262978 descr: Proxy-registered route object mnt-by: MAINT-AS8167 changed: ip-bgp [at] oi.net.br 20190207 #23:27:40Z source: RADB last-modified: 2023-11-13T15:55:28Z rpki-ov-state: valid