These entries are queried from radb.net using whois, you can try my project getting these.
:AS53244 route6: 2804:350::/32 origin: AS53244 descr: Akamai Technologies, Inc mnt-by: MAINT-AS32787 changed: ameyer [at] akamai.com 20210407 #18:35:09Z source: RADB last-modified: 2023-11-13T16:13:35Z rpki-ov-state: valid