These entries are queried from radb.net using whois, you can try my project getting these.
:AS52857 route: 177.72.254.0/24 origin: AS52857 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: glcastro [at] br.digital 20231207 # 1314Z source: RADB last-modified: 2023-12-07T13:14:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:1c60::/48 descr: Transito Mundivox to FEDERACAO DAS INDUSTRIAS DO ESTADO DO RIO DE=20 origin: AS52857 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: epafras [at] durand.com.br 20180611 source: RADB last-modified: 2023-11-13T15:53:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source