These entries are queried from radb.net using whois, you can try my project getting these.
:AS62526 route: 209.23.239.0/24 descr: AXCELIS TECHNOLOGIES origin: AS62526 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190214 #19:39:41Z source: RADB last-modified: 2023-11-13T15:55:41Z rpki-ov-state: valid