These entries are queried from radb.net using whois, you can try my project getting these.
:AS394537 route: 75.141.91.0/24 descr: Proxy Entry for Dow Chemical Employees' Credit Union origin: AS394537 mnt-by: MAINT-CHTR-WD changed: alec.ritter [at] charter.com 20180712 source: RADb last-modified: 2023-11-13T16:11:26Z rpki-ov-state: valid