These entries are queried from radb.net using whois, you can try my project getting these.
:AS62891 route: 198.74.74.0/23 origin: AS62891 descr: USA-CUST_Chief_indust-Proxy mnt-by: MAINT-AS13807 changed: mpekny [at] gpcom.com 20220307 #17:26:11Z source: RADB last-modified: 2023-11-13T16:09:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.74.74.0/24 origin: AS62891 descr: AS62891 mnt-by: MAINT-AS15164 changed: david.rittgers [at] upnfiber.com 20200330 #17:12:56Z source: RADB last-modified: 2023-11-13T16:00:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.74.75.0/24 origin: AS62891 descr: USA-CUST_Chief_Indust-Proxy mnt-by: MAINT-AS13807 changed: dhoer [at] gpcom.com 20220314 #16:38:56Z source: RADB last-modified: 2023-11-13T16:10:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source