These entries are queried from radb.net using whois, you can try my project getting these.
:AS19396 route: 216.54.61.0/24 origin: AS19396 descr: HR remarks: Proxy object for AS19396 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid