These entries are queried from radb.net using whois, you can try my project getting these.
:AS39950 route: 67.199.247.0/24 descr: RR-RC-STARCREST PRODUCTS OF CALIFORNIA INC-West origin: AS39950 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-RR changed: PublicIPAdressing [at] charter.com 20211005 source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source