These entries are queried from radb.net using whois, you can try my project getting these.
:AS7550 route: 203.15.96.0/21 origin: AS7550 descr: Akamai Technologies, Inc. mnt-by: MAINT-AS32787 changed: cromero [at] akamai.com 20221108 #01:55:50Z source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source