These entries are queried from radb.net using whois, you can try my project getting these.
:AS54763 route: 64.147.28.0/24 origin: AS54763 descr: RSMT remarks: Proxy object for AS54763 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: valid route: 198.24.250.0/24 origin: AS54763 descr: RSMT remarks: Proxy object for AS54763 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:3c:8080::/48 origin: AS54763 descr: RSMT remarks: Proxy object for AS54763 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source