These entries are queried from radb.net using whois, you can try my project getting these.
:AS19939 route: 69.54.128.0/20 origin: AS19939 descr: 15223 South Henrici Road Oregon City OR 97045 United States member-of: RS-19939 admin-c: ADMIN76-ARIN tech-c: JR1127-ARIN tech-c: LAPLA66-ARIN tech-c: NETWO88-ARIN mnt-by: MNT-BCT-31 created: 2020-08-17T23:10:03Z last-modified: 2022-07-14T20:06:52Z source: ARIN rpki-ov-state: valid