These entries are queried from radb.net using whois, you can try my project getting these.
:AS398393 route: 216.169.146.0/24 descr: CHTR-Libbey LLC-Great Lakes origin: AS398393 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com 20210920 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source