These entries are queried from radb.net using whois, you can try my project getting these.
:AS29972 route: 38.66.193.0/24 origin: AS29972 descr: Morehouse School of Medicine mnt-by: MAINT-AS2637 changed: noc [at] sox.net 20200609 #20:51:44Z source: RADB last-modified: 2023-11-13T16:00:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.83.232.0/24 descr: PNAP-ACS Morehouse origin: AS29972 mnt-by: MAINT-AS1828 changed: scottl [at] internap.com 20081023 source: RADB last-modified: 2023-11-13T16:14:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source