These entries are queried from radb.net using whois, you can try my project getting these.
:AS22137 route: 192.188.254.0/24 descr: RR-RC-Blood Center of Wisconsin, Inc.-Milwaukee origin: AS22137 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source