These entries are queried from radb.net using whois, you can try my project getting these.
:AS15300 route: 69.213.9.0/24 descr: RR-RC-4 Imprint-NEW origin: AS15300 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:14:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source