These entries are queried from radb.net using whois, you can try my project getting these.
:AS19537 route: 139.60.226.0/24 descr: RC-Upper Arlington City Schools-Midwest origin: AS19537 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:132:7000::/40 descr: RC-Upper Arlington City Schools-Midwest origin: AS19537 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source