These entries are queried from radb.net using whois, you can try my project getting these.
:AS17699 route: 218.40.32.0/20 descr: ARTERIA Networks Corporation(UCOM) origin: AS17699 notify: as17506 [at] arteria-net.com mnt-by: MAINT-AS17506 changed: naoki.kurihara [at] arteria-net.com 20160117 #01:16:56Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source