These entries are queried from radb.net using whois, you can try my project getting these.
:AS328076 route: 45.222.48.0/20 descr: CUSTOMER NAME :UMAT origin: AS328076 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170811 #10:50:29Z source: RADB last-modified: 2023-11-13T15:51:19Z rpki-ov-state: valid route: 45.222.48.0/20 descr: University of Mines and Technology descr: UMaTRoute origin: AS328076 notify: *** [at] umat.edu.gh mnt-lower: UOMA1-MNT mnt-routes: UOMA1-MNT mnt-by: UOMA1-MNT changed: *** [at] umat.edu.gh 20161119 source: AFRINIC rpki-ov-state: valid route6: 2001:43f8:300::/48 descr: University of Mines and Technology origin: AS328076 mnt-by: UOMA1-MNT changed: *** [at] umat.edu.gh 20201214 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source