These entries are queried from radb.net using whois, you can try my project getting these.
:AS53642 route: 161.129.23.0/24 descr: NET-161-129-23-0-1 Central Community Unit School District 301 275 South St. Po Box 396 Burlington, IL 60109 US remarks: proxy-registered object for customer Direct inquiries to asuleima [at] chipublib.org origin: AS53642 mnt-by: MAINT-AS6079 changed: dwayne.martin [at] rcn.net 20231002 source: RADB last-modified: 2023-11-13T16:18:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.129.23.0/24 origin: AS53642 descr: Central CUSD 301 275 South St. Po Box 396 Burlington IL 60109 United States admin-c: TOBIN15-ARIN tech-c: AGUIN4-ARIN tech-c: MCCAR285-ARIN mnt-by: MNT-CCUSD-3 created: 2023-10-05T18:55:26Z last-modified: 2023-10-05T18:55:26Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source