These entries are queried from radb.net using whois, you can try my project getting these.
:AS25323 route: 193.254.228.0/23 descr: Prolexic Technologies, Inc. origin: AS25323 notify: hostmaster [at] prolexic.com mnt-by: MAINT-AS32787 changed: fleandre [at] akamai.com 20201111 #12:04:32Z 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: 193.254.228.0/23 descr: YKB origin: AS25323 notify: solip [at] superonline.net mnt-by: SOL-NET created: 2003-06-12T10:34:36Z last-modified: 2003-06-12T10:34:36Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source