These entries are queried from radb.net using whois, you can try my project getting these.
:AS53947 route: 207.96.13.0/24 descr: SIDERA-CSR_CHILDERNS HOSPITAL DC origin: AS53947 mnt-by: MAINT-AS27506 changed: dataoperations [at] rcnmetro.com 20110927 #20:23:03Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: valid