These entries are queried from radb.net using whois, you can try my project getting these.
:AS271020 route: 177.53.180.0/22 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. origin: AS271020 mnt-by: MAINT-AS14840 changed: gacosta [at] br.digital 20211112 #17:40:02Z source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:750c::/32 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. origin: AS271020 mnt-by: MAINT-AS14840 changed: gacosta [at] br.digital 20211112 #17:45:02Z source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source