These entries are queried from radb.net using whois, you can try my project getting these.
:AS397640 route: 154.51.147.0/24 origin: AS397640 descr: Route Registered for Cogent Communications Customer Core Scientific mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20201002 #06:47:49Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.199.56.0/23 descr: Core Scientific, Inc. origin: AS397640 mnt-by: MNT-CS-2476 changed: mmerkel [at] corescientific.com 20190710 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.199.56.0/24 origin: AS397640 descr: proxy route admin-c: WABIK-ARIN tech-c: BELLI86-ARIN notify: bob.bellinger [at] dcblox.com mnt-by: MAINT-AS395567 changed: bob.bellinger [at] dcblox.com 20200623 #22:17:52Z 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: 161.199.57.0/24 origin: AS397640 descr: proxy route admin-c: WABIK-ARIN tech-c: BELLI86-ARIN notify: bob.bellinger [at] dcblox.com mnt-by: MAINT-AS395567 changed: bob.bellinger [at] dcblox.com 20200623 #22:19:16Z source: RADB last-modified: 2023-11-13T16:01:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source