These entries are queried from radb.net using whois, you can try my project getting these.
:AS397879 route: 148.170.0.0/18 origin: AS397879 descr: Proxy route for AS397879 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #15:19:52Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 148.170.16.0/20 origin: AS397879 descr: Proxy route for AS397879 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #15:20:19Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source