These entries are queried from radb.net using whois, you can try my project getting these.
:AS26448 route: 208.68.76.0/22 descr: PNAP-BSN Christian Book Distributors origin: AS26448 mnt-by: MAINT-AS1828 changed: djaffers [at] internap.com 20060816 source: RADB last-modified: 2023-11-13T16:13:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source