These entries are queried from radb.net using whois, you can try my project getting these.
:AS53643 route: 12.202.147.0/24 descr: HIT Solutions origin: AS53643 mnt-by: MAINT-CHTR-WD changed: terry.peters [at] chartercom.com 20110106 #01:24:44Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.63.54.0/24 origin: AS53643 descr: Manteno Community Unit School District 5 mnt-by: MAINT-AS6325 changed: bgp4-admin [at] illinois.gov 20221017 #16:21:18Z source: RADB last-modified: 2023-11-13T16:12:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source