These entries are queried from radb.net using whois, you can try my project getting these.
:AS394443 route: 75.141.74.0/24 descr: Charter Radio Systems origin: AS394443 mnt-by: MAINT-CHTR-WD changed: rob.beauvais [at] charter.com 20151223 #12:14:27Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: valid