These entries are queried from radb.net using whois, you can try my project getting these.
:AS133541 route: 103.234.148.0/24 descr: Akamai Technologies, Inc origin: AS133541 mnt-by: MAINT-AS32787 changed: ameyer [at] akamai.com 20200517 #19:35:17Z source: RADB last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.234.148.0/24 descr: Route Object origin: AS133541 mnt-by: MAINT-SIPPE-SG mnt-routes: MAINT-SIPPE-SG country: SG last-modified: 2015-07-14T02:38:41Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source