These entries are queried from radb.net using whois, you can try my project getting these.
:AS24509 route: 61.111.148.16/28 descr: The info of AS24509 is available at whois.knic.net origin: AS24509 mnt-by: MAINT-AS4670 changed: lmy7589 [at] onsetel.co.kr 20110405 source: RADB last-modified: 2023-11-13T15:41:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.77.176.0/24 origin: AS24509 descr: INET mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210426 #06:27:56Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source