These entries are queried from radb.net using whois, you can try my project getting these.
:AS20304 route: 64.112.191.0/24 origin: AS20304 descr: Proxy route object for LEPTON by CORESITE mnt-by: MAINT-AS2734 changed: chris.reed [at] coresite.com 20200315 #19:54:54Z source: RADB last-modified: 2023-11-13T16:17:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.71.137.0/24 origin: AS20304 descr: proxy ROUTE object for LEPTON by CORESITE admin-c: REEDC55-ARIN tech-c: REEDC55-ARIN notify: netops [at] coresite.com mnt-by: MAINT-AS2734 changed: chris.reed [at] coresite.com 20220603 #17:43:34Z source: RADB last-modified: 2023-11-13T16:17:50Z rpki-ov-state: valid route: 69.71.138.0/24 origin: AS20304 descr: proxy ROUTE object for LEPTON by CORESITE admin-c: REEDC55-ARIN tech-c: REEDC55-ARIN notify: netops [at] coresite.com mnt-by: MAINT-AS2734 changed: chris.reed [at] coresite.com 20220603 #17:46:10Z source: RADB last-modified: 2023-11-13T16:17:50Z rpki-ov-state: valid