These entries are queried from radb.net using whois, you can try my project getting these.
:AS327944 route: 196.13.252.0/24 descr: African Institute for Mathematical Sciences Ghana origin: AS327944 mnt-by: AIMS-GHANA-MNT mnt-routes: AIMS-GHANA-MNT changed: *** [at] aims.edu.gh 20151027 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.13.252.0/24 origin: AS327944 descr: AIMS Ghana IPv4 Prefixes admin-c: DKAA2-RADB tech-c: DKAA2-RADB mnt-by: MAINT-INETCOM changed: engineering [at] inet.com.gh 20210213 #12:19:50Z source: RADB last-modified: 2023-11-13T16:03:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source