These entries are queried from radb.net using whois, you can try my project getting these.
:AS393491 route: 75.141.77.0/24 descr: Victor Valley Hospital, Victorville, CA, Charter Communications origin: AS393491 mnt-by: MAINT-CHTR-WD changed: tim.weber [at] charter.com 20140716 #14:42:06Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: valid