These entries are queried from radb.net using whois, you can try my project getting these.
:AS399306 route: 23.177.16.0/24 origin: AS399306 descr: 9450 SW Gemini Dr PMB 41687 Beaverton OR 97008-7105 United States admin-c: KARAU2-ARIN tech-c: KARAU2-ARIN mnt-by: MNT-PCFLL created: 2021-04-08T18:22:20Z last-modified: 2021-04-08T18:22:20Z source: ARIN rpki-ov-state: valid route: 209.209.73.0/24 origin: AS399306 descr: 9450 SW Gemini Dr PMB 41687 Beaverton OR 97008-7105 United States admin-c: KARAU2-ARIN tech-c: KARAU2-ARIN mnt-by: MNT-PCFLL created: 2021-04-07T04:42:25Z last-modified: 2021-04-07T04:42:25Z source: ARIN rpki-ov-state: valid route6: 2602:fcb1::/36 origin: AS399306 descr: 9450 SW Gemini Dr PMB 41687 Beaverton OR 97008-7105 United States admin-c: KARAU2-ARIN tech-c: KARAU2-ARIN mnt-by: MNT-PCFLL created: 2021-03-16T04:17:45Z last-modified: 2021-03-16T04:17:45Z source: ARIN rpki-ov-state: valid