These entries are queried from radb.net using whois, you can try my project getting these.
:AS46660 route: 38.147.48.0/21 origin: AS46660 descr: Proxy for Winsonic and Cogent IP space admin-c: WABIK-ARIN tech-c: BELLI86-ARIN notify: bob.bellinger [at] dcblox.com mnt-by: MAINT-AS395567 changed: bob.bellinger [at] dcblox.com 20210405 #00:26:38Z source: RADB last-modified: 2023-11-13T16:05:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source