These entries are queried from radb.net using whois, you can try my project getting these.
:AS36593 route: 66.33.99.0/24 origin: AS36593 descr: Aspen Smart Networks CO admin-c: NOC32997-ARIN tech-c: NOC32997-ARIN mnt-by: MNT-AWT-76 created: 2023-09-25T22:42:21Z last-modified: 2023-09-25T22:42:21Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.94.108.0/23 origin: AS36593 descr: Aspen Wireless Technologies 910 15th St Denver, CO 80202 admin-c: NOC32997-ARIN tech-c: NOC32997-ARIN mnt-by: MNT-AWT-76 created: 2022-06-22T21:34:35Z last-modified: 2022-06-22T21:34:35Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source