These entries are queried from radb.net using whois, you can try my project getting these.
:AS15049 route: 68.70.59.0/24 descr: RR-RC-Tompkins County-Ithaca origin: AS15049 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: valid