These entries are queried from radb.net using whois, you can try my project getting these.
:AS46820 route: 71.181.118.0/24 descr: RR-RC-Litteton Regional Hospital-Portland origin: AS46820 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source