These entries are queried from radb.net using whois, you can try my project getting these.
:AS397492 route: 47.45.33.0/24 descr: RR-RC-LumenOne Communications LLC-Midwest origin: AS397492 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20190418 #16:10:57Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: valid