These entries are queried from radb.net using whois, you can try my project getting these.
:AS30378 route: 148.59.56.0/24 descr: RR-RC-Miron Construction-Midwest origin: AS30378 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20190108 #22:31:17Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source