These entries are queried from radb.net using whois, you can try my project getting these.
:AS398428 route: 67.52.34.0/24 descr: RR-RC-Charter - Enterprise/ N&M TRANSFER CO, INC-Central origin: AS398428 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-RR changed: PublicIPAdressing [at] charter.com 20231023 source: RADB last-modified: 2023-11-13T16:19:18Z rpki-ov-state: valid