These entries are queried from radb.net using whois, you can try my project getting these.
:AS328313 route: 102.141.235.0/24 origin: AS328313 descr: GVSC - Internet mnt-by: MAINT-AS37314 changed: dhe [at] syrex.cc 20200620 #09:27:36Z source: RADB last-modified: 2023-11-13T16:01:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.141.235.0/24 descr: GVSC (Pty) Ltd - Internet origin: AS328313 org: ORG-GCL2-AFRINIC mnt-by: GCL2-MNT changed: *** [at] gvsc.co.za 20180521 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.221.156.0/22 origin: AS328313 descr: GVSC (Pty) Ltd - Internet mnt-by: MAINT-AS37314 changed: dhe [at] syrex.co 20210810 #11:27:52Z source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.221.156.0/22 descr: GVSC (Pty) Ltd - Internet origin: AS328313 mnt-by: GCL2-MNT org: ORG-GCL2-AFRINIC changed: *** [at] gvsc.co.za 20210810 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.221.159.0/24 origin: AS328313 descr: GVSC (Pty) Ltd - Internet mnt-by: MAINT-AS37314 changed: dhe [at] syrex.co 20210810 #11:29:09Z source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.221.159.0/24 descr: GVSC (Pty) Ltd - Internet origin: AS328313 mnt-by: GCL2-MNT org: ORG-GCL2-AFRINIC changed: *** [at] gvsc.co.za 20210810 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source